Method and system for controlling flexible shutoff device based on air pressure

Abstract

The present invention discloses a method and system for controlling a flexible intercepting device based on air pressure. The method enables rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser to flow into the pressure storage chamber at a flow rate of V1 through the diverter and the rainwater riser in sequence, and to be discharged through the drain outlet at a flow rate of V2. The flexible sleeve is compressed and deformed under the action of water pressure and gradually closes. When the flexible intercepting device is opened, the rainwater in the pressure storage chamber is discharged at a flow rate of V3, and the flexible sleeve begins to expand and recover under the action of its own elastic force and gradually opens. The present invention controls the opening or closing of the flexible intercepting device through the water column pressure formed by the rainwater in the rainwater riser outside the building, without the need to provide an additional power source, so as to achieve a greater degree of utilization of existing resources to control the opening and closing of the flexible intercepting device and achieve the technical effect of reducing control costs.

Description

Technical Field

[0001] The invention belongs to the technical field of municipal drainage, and in particular relates to a method and a system for controlling a flexible intercepting device based on air pressure. Background Art

[0002] Existing equipment for controlling interception devices, such as float valves that use the buoyancy of water for opening and closing control, and open-type weir gates and rotary gates that use hydraulic systems or electric systems for opening and closing control, all have the following problems: the interception components are easily entangled by entanglements in the water environment, causing obstruction and failure to open and close normally.

[0003] As a type of interception equipment, the flexible interception device has a simple structure and can realize the interception function when the pressure storage chamber is closed. Usually, the surface of the pressure storage chamber is smooth or can be directly attached to the intercepted pipe, so it will not be entangled by garbage in the water and get stuck during the state switching of the pressure storage chamber. The flexible interception device is driven by air pressure, which is safer than electric drive and more environmentally friendly than hydraulic drive. The flexible interception device has the above advantages and is widely promoted, and is particularly suitable for urban sewage diversion systems.

[0004] How to reduce control costs and provide more environmentally friendly sewage diversion solutions is the direction that the drainage field has been exploring. Summary of the invention

[0005] The technical problem to be solved by the present invention is how to provide a new method and system for controlling a flexible shut-off device based on air pressure, so as to achieve a greater degree of utilization of existing resources to control the opening and closing of the flexible shut-off device and achieve the technical effect of reducing control costs.

[0006] In order to solve the above technical problems, in the first aspect, the present invention provides a method for controlling a flexible intercepting device based on air pressure, wherein the flexible intercepting device has a pressure storage chamber, a rainwater riser is arranged outside a building adjacent to the flexible intercepting device, and the water outlet end of the rainwater riser is placed in a sealed chamber, a vent and a drain are provided on the sealed chamber, and the vent is connected to the pressure storage chamber through an air pipe, and the method comprises: obtaining the pressure required to close the pressure storage chamber; selecting the installation height of the diverter on the rainwater riser according to the pressure; setting the diverter according to the installation height; and When the flexible intercepting device is closed, rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser flows into the sealed cavity through the first water outlet in the diverter and the water outlet end of the rainwater riser in sequence, and squeezes the air in the sealed cavity to flow into the pressure storage cavity through the vent and the air pipe in sequence, and the pressure storage cavity begins to compress and deform under the action of air pressure, so that the flexible intercepting device is gradually closed; when the flexible intercepting device is opened, rainwater in the sealed cavity is discharged through the drain port, and the pressure storage cavity begins to expand and recover under the action of its own elastic force, so that the flexible intercepting device is gradually opened.

[0007] Optionally, selecting the installation height of the diverter on the rainwater riser based on the pressure specifically includes: taking the installation height on the rainwater riser as the highest water level, and selecting the installation height of the diverter on the rainwater riser based on the standard that the air pressure formed after the water column in the rainwater riser flows into the sealing cavity gradually squeezes the pressure storage cavity until the flexible intercepting device is closed.

[0008] Optionally, when the water level in the rainwater riser reaches the installation height, the rainwater is discharged through the second water outlet in the diverter.

[0009] Optionally, a drain valve is provided on the drain outlet; when the drain valve is a manual valve, the method further comprises: obtaining the time T1 when the flexible intercepting device needs to be opened and / or the time T2 when it needs to be closed; and setting the opening of the drain valve according to T1 and / or T2.

[0010] Optionally, a drain valve is provided on the drain outlet; when the drain valve is a solenoid valve, the method further includes: obtaining the time T1 when the flexible intercepting device needs to be opened and / or the time T2 when it needs to be closed; setting the time T3 when the solenoid valve is opened according to T1, and / or setting the time T4 when the solenoid valve is closed according to T2.

[0011] Optionally, the method further includes: supplying power to the solenoid valve via solar energy or a battery.

[0012] In the second aspect, the present invention also provides a method for controlling a flexible intercepting device based on air pressure, wherein the flexible intercepting device has a pressure storage chamber, a rainwater riser is arranged outside a building adjacent to the flexible intercepting device, the rainwater riser is connected to the sealed chamber through a conducting pipe, one end of the conducting pipe passes through the sealed chamber and is placed at the bottom of the sealed chamber, a vent and a drain are provided on the sealed chamber, the vent is connected to the pressure storage chamber through an air pipe, the method comprises: obtaining the required pressure for closing the pressure storage chamber; selecting the installation height of the diverter on the rainwater riser according to the pressure; and selecting the installation height according to the installation height. The diverter is provided; when the flexible intercepting device is closed, rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser flows into the sealed cavity through the second water outlet in the diverter and the conducting pipe in sequence, and squeezes the air in the sealed cavity to flow into the pressure storage cavity through the vent and the air pipe in sequence, and the pressure storage cavity begins to compress and deform under the action of air pressure so that the flexible intercepting device is gradually closed; when the flexible intercepting device is opened, rainwater in the sealed cavity is discharged through the drain port, and the pressure storage cavity begins to expand and recover under the action of its own elastic force so that the flexible intercepting device is gradually opened.

[0013] Optionally, selecting the installation height of the diverter on the rainwater riser based on the pressure specifically includes: taking the installation height on the rainwater riser as the highest water level, and selecting the installation height of the diverter on the rainwater riser based on the standard that the air pressure formed after the water column in the rainwater riser flows into the sealing cavity gradually squeezes the pressure storage cavity until the flexible intercepting device is closed.

[0014] In a third aspect, the present invention further provides a system based on air pressure control of a flexible shut-off device, which is used in any of the methods described above, and the system includes: a drain valve, which is a manual valve or a solenoid valve; a controller, which includes a memory and a processor, and a computer program is stored on the memory. When the program is executed by the processor, the following steps can be implemented: obtaining the pressure required to close the pressure storage chamber; selecting the installation height of the diverter on the rainwater riser according to the pressure; setting the diverter according to the installation height; when the flexible shut-off device is closed, rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser flows into the sealed chamber through the first water outlet in the diverter and the water outlet end of the rainwater riser in sequence, and squeezes the air in the sealed chamber to flow into the pressure storage chamber through the vent and the air pipe in sequence, and the pressure storage chamber begins to compress and deform under the action of air pressure, so that the flexible shut-off device is gradually closed; when the flexible shut-off device is opened, the rainwater in the sealed chamber is discharged through the drain port, and the pressure storage chamber begins to expand and recover under the action of its own elastic force, so that the flexible shut-off device is gradually opened.

[0015] In a fourth aspect, the present invention further provides a system based on air pressure control of a flexible shut-off device, which is used in any of the methods described above, and the system includes: a drain valve, which is a manual valve or a solenoid valve; a controller, which includes a memory and a processor, and a computer program is stored on the memory. When the program is executed by the processor, the following steps can be implemented: obtaining the required pressure for closing the pressure storage chamber; selecting the installation height of the diverter on the rainwater riser according to the pressure; setting the diverter according to the installation height; when the flexible shut-off device is closed, rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser flows into the sealed chamber through the second water outlet in the diverter and the conducting pipe in turn, and squeezes the air in the sealed chamber to flow into the pressure storage chamber through the vent and the air pipe in turn, and the pressure storage chamber begins to compress and deform under the action of air pressure, so that the flexible shut-off device is gradually closed; when the flexible shut-off device is opened, the rainwater in the sealed chamber is discharged through the drain port, and the pressure storage chamber begins to expand and recover under the action of its own elastic force, so that the flexible shut-off device is gradually opened.

[0016] Beneficial effects:

[0017] The method for controlling a flexible intercepting device based on air pressure provided by the present invention obtains the pressure of a pressure storage chamber; and selects the installation height of a diverter on a rainwater riser according to the pressure; and sets the diverter according to the installation height; thus, when the flexible intercepting device is closed, rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser flows into the sealed chamber through the water inlet, the first water outlet and the water outlet end of the rainwater riser in sequence, and squeezes the air in the sealed chamber to flow into the pressure storage chamber through the vent and the air pipe in sequence, so that as the amount of water in the sealed chamber increases, the air pressure gradually increases, and under the action of the air pressure, the flexible intercepting device begins to be compressed and deformed, thereby realizing the gradual deformation of the flexible intercepting device. Gradually closes; when the flexible intercepting device is opened, rainwater in the sealed cavity is discharged through the drain outlet, so that the gas accommodation space in the sealed cavity is gradually increased, and the gas in the pressure storage chamber flows back into the sealed cavity, and then the air pressure formed by the gas in the sealed cavity is gradually reduced, and the flexible intercepting device begins to expand and recover under the action of its own elastic force, and then the flexible intercepting device is gradually opened, so that the gas pressure formed after the rainwater in the rainwater riser outside the building flows into the sealed cavity is used to control the opening or closing of the flexible intercepting device 1, without providing an additional power source, so as to achieve a greater degree of utilization of existing resources to control the opening and closing of the flexible intercepting device and achieve the technical effect of reducing control costs.

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of an applicable scenario of the control method provided in the first embodiment of the present invention;

[0021] Figure 2 A schematic diagram of an applicable scenario of the control method provided in the second embodiment of the present invention;

[0022] Figure 3 A flowchart of a control method provided in Embodiment 1 of the present invention;

[0023] Figure 4 This is a flowchart of a control method provided in Embodiment 2 of the present invention;

[0024] Figure 5 This is a structural block diagram of a control system provided by Embodiment 3 of the present invention;

[0025] Reference numerals:

[0026] Flexible intercepting device-1, pressure storage chamber-11, drain port-12, connecting port-13, drain valve-14, sealing chamber-132

[0027] Rainwater riser-2, water inlet-21, water outlet-22;

[0028] Diverter-3, water inlet-31, first water outlet-32, second water outlet-33, buffer box-34, partition-35;

[0029] Connecting pipe-4;

[0030] Well-5;

[0031] Buildings - 6;

[0032] Trachea -7. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention belong to the scope of protection of the present invention; the "and / or" keyword involved in this implementation represents both and, or. In other words, A and / or B mentioned in the embodiments of the present invention represent both A and B, and A or B, and describe the three states of A and B. For example, A and / or B means: only A is included but not B; only B is included but not A; both A and B are included.

[0034] At the same time, in the embodiments of the present invention, when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected or communicated" with another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the present invention.

[0035] It should be noted that, in order to explain the present invention in more detail so that those skilled in the art can understand the present invention more clearly and understandably, and further support the technical problems to be solved by the present invention and the corresponding technical effects that can be achieved, before introducing the present invention, the following explanations are made for the terminology and applicable scenarios involved:

[0036] A rainwater riser is a pipe installed outside a building to transport rainwater, sewage, or a mixture of rainwater and sewage.

[0037] Embodiment 1

[0038] Before introducing the method of the air pressure-controlled flexible shut-off device provided in Example 1 of the present application, in order to better explain the method in detail to support the technical problem to be solved by the present invention, the specific application scenario applicable to the method provided in Example 2 of the present application is first explained in detail below.

[0039] Please refer to Figure 1, is a specific application scenario used by the method provided in the first embodiment, that is, an overall structural block diagram of a drainage system, the drainage system includes a well body 5, a rainwater riser 2, a flexible intercepting device 1 and an air pressure control component. The air pressure control component controls the opening and closing of the flexible intercepting device 1 based on air pressure. The flexible intercepting device 1 has a pressure storage chamber 11 with adjustable volume. A rainwater riser 2 is arranged outside a building 6 adjacent to the flexible intercepting device 1. The control component specifically includes: a sealing chamber 132, an air pipe 7 and a diverter 3. The sealed cavity 132 is provided with an air vent 121 and a drain port 122. The water outlet 22 of the rainwater riser 2 passes through the sealed cavity 132 and is located at the bottom of the sealed cavity 132. The diverter 3 installed on the rainwater riser 2 has a water inlet 31, a first water outlet 32 ​​and a second water outlet 33. The water inlet 31 is connected to the water inlet 21 of the rainwater riser 2, and the first water outlet 32 ​​is connected to the water outlet 22 of the rainwater riser 2. The air pipe 7 is connected to the air vent 121 and the pressure storage chamber 11 respectively.

[0040] It should be noted that the above-mentioned flexible intercepting device 1 is a device with elastic deformation, such as a flexible rubber sleeve. The pressure storage chamber 11 can be a water storage space with a space for accommodating rainwater formed by the outer wall of the flexible rubber sleeve and the inner wall of a certain outer shell, or it can be directly made of a flexible rubber sleeve with a double-layer structure as one piece. This embodiment does not limit this. As long as the flexible intercepting device 1 with elastic deformation function can be satisfied, it is suitable for the present invention.

[0041] In this applicable scenario, a drain valve 14 is provided on the drain port 122, and the drain valve 14 is a manual valve or a solenoid valve. The diverter 3 is a three-way pipe, and the water inlet 31, the first water outlet 32 ​​and the second water outlet 33 are three pipe openings corresponding to the three-way pipe, so that the rainwater flowing through the rainwater riser 2 is diverted through the three-way pipe, so that a part of the rainwater is diverted to form a water column pressure in the rainwater riser, and the other part of the rainwater is directly discharged to the ground after being diverted, so as to achieve the technical effect of diverting the rainwater flowing through the part where the diverter is set under the action of the diverter.

[0042] The above is a specific application scenario applicable to the second embodiment of the present application. Please continue to refer to the following Figure 3 , the method based on air pressure control of the flexible intercepting device provided in Example 2 of the present application is described in detail:

[0043] A method for controlling a flexible shutoff device based on air pressure, the method comprising:

[0044] Obtaining the pressure required to close the pressure accumulation chamber;

[0045] Selecting the installation height of the diverter on the rainwater riser according to the pressure;

[0046] The diverter is arranged according to the installation height;

[0047] When the flexible intercepting device is closed, rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser flows into the sealed cavity through the first water outlet in the diverter and the water outlet end of the rainwater riser in sequence, and squeezes the air in the sealed cavity to flow into the pressure storage cavity through the vent and the air pipe in sequence, and the pressure storage cavity begins to compress and deform under the action of air pressure, so that the flexible intercepting device is gradually closed;

[0048] When the flexible intercepting device is opened, rainwater in the sealing cavity is discharged through the drain port, and the pressure storage cavity begins to expand and recover under the action of its own elastic force, so that the flexible intercepting device is gradually opened.

[0049] Specifically, the method obtains the pressure of the pressure storage chamber; and selects the installation height of the diverter on the rainwater riser according to the pressure; and sets the diverter according to the installation height; so that when the flexible intercepting device 1 is closed, the rainwater flowing into the rainwater riser 2 through the water inlet end 21 of the rainwater riser 2 flows into the sealed chamber 132 through the water inlet 31, the first water outlet 32 ​​and the water outlet end 22 of the rainwater riser 2 in the diverting device 3, and squeezes the air in the sealed chamber 132 to flow into the pressure storage chamber 11 through the vent 121 and the air pipe 7 in turn, so that as the water volume in the sealed chamber increases, the air pressure gradually increases, and under the action of the air pressure, the flexible intercepting device 1 begins to be compressed and deformed, and then the flexible intercepting device 1 is gradually closed; in the flexible When the intercepting device 1 is opened, rainwater in the sealed cavity 132 is discharged through the drain port 122, so that the gas accommodation space in the sealed cavity 132 gradually increases, and the gas in the pressure storage chamber 11 flows back into the sealed cavity 132, and then the air pressure formed by the gas in the sealed cavity 132 gradually decreases, and the flexible intercepting device 1 begins to expand and recover under the action of its own elastic force, and then the flexible intercepting device 1 is gradually opened, so that the gas pressure formed after the rainwater in the rainwater riser 2 outside the building 6 flows into the sealed cavity 132 is used to control the opening or closing of the flexible intercepting device 1, without providing an additional power source, so as to achieve a greater degree of utilization of existing resources to control the opening and closing of the flexible intercepting device and achieve the technical effect of reducing control costs.

[0050] In some possible implementations, selecting the installation height of the diverter on the rainwater riser based on the pressure specifically includes: taking the installation height on the rainwater riser as the highest water level, and selecting the installation height of the diverter on the rainwater riser based on the standard that the air pressure formed after the water column in the rainwater riser flows into the sealing cavity gradually squeezes the pressure storage cavity until the flexible intercepting device is closed.

[0051] In some possible implementations, when the water level in the rainwater riser reaches the installation height, the rainwater is discharged through the second water outlet in the diverter. Those skilled in the art can understand that, as the amount of rainwater entering the rainwater riser increases, the rainwater in the rainwater riser is diverted to the sealed cavity through the first water outlet in the diverter, and is squeezed by the sealing gas in the sealed cavity to form pneumatic pressure to compress the pressure storage cavity. At this time, the water level in the rainwater riser will gradually rise, and when it reaches the setting height of the second water outlet in the diverter, it will be discharged from the second water outlet, thereby achieving the technical effect of not affecting the normal discharge of rainwater in the rainwater riser during the control of the closing of the flexible intercepting device.

[0052] In some possible implementations, when the drain valve is a manual valve, the method further includes: obtaining the opening time T1 and / or closing time T2 of the flexible intercepting device; and setting the opening of the drain valve according to T1 and / or T2. In order to better control the opening and / or closing time of the flexible intercepting device 1, a manual valve can be set, and the opening of the manual valve can be set in advance according to the required opening and / or closing time of the flexible intercepting device 1, so that the flow rate V2 can be pre-set, thereby achieving the technical effect of precise control. In addition, in this implementation, the manual valve does not need to provide an additional power supply, which makes it possible to effectively achieve a completely powerless control effect in this implementation.

[0053] In some possible implementations, when the drain valve is a solenoid valve, the method further includes: obtaining the opening time T1 and / or closing time T2 of the flexible intercepting device; setting the opening time T3 of the solenoid valve according to the T1, and / or setting the closing time T4 of the solenoid valve according to the T2. In order to better realize the "real-time" control of the opening and / or closing time of the flexible intercepting device 1 and achieve the technical effect of "precise" control of opening and / or closing, a solenoid valve can be set and a controller can be added to control the solenoid valve in real time, for example, the opening time T3 is pre-set, and when the opening time T3 is reached, the controller sends a control instruction to control the solenoid valve to move, and the closing time T4 is set, and when the closing time T4 is reached, the controller sends a control instruction to control the solenoid valve to move. In this way, the technical effect of "real-time" and "precise" control is achieved. In addition, since the power consumption of the solenoid valve is not high, it can be powered by a battery or solar energy, effectively achieving the control effect of micro-power and low power consumption.

[0054] Embodiment 2

[0055] Before introducing the method based on air pressure controlled flexible shut-off device provided in Example 2 of the present application, in order to better explain the method in detail to support the technical problem to be solved by the present invention, the specific application scenario applicable to the method provided in Example 2 of the present application is first explained in detail below.

[0056] Please refer to Figure 2 , is a specific application scenario used by the method provided in the second embodiment, that is, an overall structural block diagram of a drainage system, the drainage system includes a well body 5, a rainwater riser 2, a flexible intercepting device 1 and an air pressure control component. The air pressure control component controls the opening and closing of the flexible intercepting device 1 based on air pressure. The flexible intercepting device 1 has a pressure storage chamber 11 with adjustable volume. A rainwater riser 2 is arranged outside a building 6 adjacent to the flexible intercepting device 1. The control component specifically includes: a sealing chamber 132, a conducting pipe 41, an air pipe 7 and a diverter 3. A vent 121 and a drain port 122 are provided on the sealed cavity 132. The diverter 3 installed on the rainwater riser 2 has a water inlet 31, a first water outlet 32 ​​and a second water outlet 33. The water inlet 31 is connected to the water inlet end 21 of the rainwater riser 2, and the first water outlet 32 ​​is connected to the water outlet end 22 of the rainwater riser 2; the air pipe 7 is respectively connected to the vent 121 and the pressure storage chamber 11; one end of the conducting pipe 41 is connected to the second water outlet 33, and the other end passes through the sealed cavity 132 and reaches the bottom of the sealed cavity 132.

[0057] It should be noted that the flexible intercepting device 1 in the above-mentioned second embodiment is a device with elastic deformation, such as a flexible rubber sleeve. The pressure storage chamber 11 can be a water storage space with a space for accommodating rainwater formed by the outer wall of the flexible rubber sleeve and the inner wall of a certain outer shell, or it can be directly made of a flexible rubber sleeve with a double-layer structure as one piece. This embodiment does not limit this. As long as the flexible intercepting device 1 with elastic deformation function can be satisfied, it is suitable for the present invention.

[0058] In this applicable scenario, the diverter 3 includes: a buffer box 34 and a partition 35. The water inlet 31, the first water outlet 32 ​​and the second water outlet 33 are correspondingly opened on the buffer box 34, and the pipe mouth of the rainwater riser 2 connected to the first water outlet 32 ​​passes through the first water outlet 32 ​​and is located in the buffer box 34, and forms a buffer zone with the side wall of the buffer box 34; one side of the partition 35 is fixed in the buffer box 34, and the other side forms a circulation zone with the side wall of the buffer box 34, which is used for rainwater to flow into the water inlet through the water inlet end 21 of the rainwater riser 2 in turn, and flow into the buffer zone through the circulation zone; the opening height of the second water outlet on the buffer box is lower than the height of the pipe mouth of the rainwater riser passing through the first water outlet and located in the buffer box. Then, the rainwater flowing through the rainwater riser 2 is diverted through the diverter, so that a part of the rainwater is diverted to form a water column pressure in the conducting pipe 41, and the other part of the rainwater is diverted and directly discharged to the ground through the rainwater riser 2, so as to achieve the technical effect of diverting the rainwater flowing through the part where the diverter is set under the action of the diverter. In addition, the reason why the height of the second water outlet on the buffer box is lower than the height of the pipe mouth of the rainwater riser through the first water outlet located in the buffer box is that only when the height of the second water outlet is lower than the height of the pipe mouth of the rainwater riser, the rainwater flowing into the buffer zone through the circulation area will preferentially flow into the sealed cavity through the second water outlet, and then preferentially form the technical effect of water column pressure in the sealed cavity.

[0059] In this applicable scenario, the diverter 3 has a bending height, which is equal to or greater than the height of the rainwater riser in the buffer box 34 after the rainwater riser penetrates into the second water outlet 33 .

[0060] In this applicable scenario, a drain valve 14 is provided on the drain outlet 122. The drain valve 14 is a manual valve having an opening degree, and the opening degree is set according to the time T1 when the flexible intercepting device needs to be opened and / or the time T2 when it needs to be closed.

[0061] The above is a specific application scenario applicable to the third embodiment of the present application. Please continue to refer to the following Figure 4 , the method based on air pressure control of the flexible intercepting device provided in Example 3 of the present application is described in detail:

[0062] A method for controlling a flexible shutoff device based on air pressure, the method comprising:

[0063] Obtaining the pressure required to close the pressure accumulation chamber;

[0064] Selecting the installation height of the diverter on the rainwater riser according to the pressure;

[0065] The diverter is arranged according to the installation height;

[0066] When the flexible intercepting device is closed, rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser flows into the sealed cavity through the second water outlet in the diverter and the conducting pipe in sequence, and squeezes the air in the sealed cavity to flow into the pressure storage cavity through the vent and the air pipe in sequence, and the pressure storage cavity begins to compress and deform under the action of air pressure, so that the flexible intercepting device is gradually closed;

[0067] When the flexible intercepting device is opened, rainwater in the sealing cavity is discharged through the drain port, and the pressure storage cavity begins to expand and recover under the action of its own elastic force, so that the flexible intercepting device is gradually opened.

[0068] Specifically, the third embodiment of the present invention obtains the pressure required to close the pressure storage chamber; selects the installation height of the diverter on the rainwater riser according to the pressure; and sets the diverter according to the installation height; thus, when the flexible intercepting device 1 is closed, rainwater flowing into the rainwater riser 2 through the water inlet end 21 of the rainwater riser 2 flows into the sealed chamber 132 through the water inlet 31, the second water outlet 33, and the conducting pipe 41 in the diverter 3 in sequence, and squeezes the air in the sealed chamber 132 to flow into the pressure storage chamber 11 through the vent 121 and the air pipe 7 in sequence, so that as the amount of water in the sealed chamber increases, the air pressure gradually increases, and under the action of the air pressure, the flexible intercepting device 1 begins to be compressed and deformed, thereby realizing the gradual closure of the flexible intercepting device 1; When the flexible intercepting device 1 is opened, rainwater in the sealed cavity 132 is discharged through the drain port 122, so that the gas accommodation space in the sealed cavity 132 is gradually increased, and the gas in the pressure storage chamber 11 flows back into the sealed cavity 132, and then the air pressure formed by the gas in the sealed cavity 132 is gradually reduced, and the flexible intercepting device 1 begins to expand and recover under the action of its own elastic force, and then the flexible intercepting device 1 is gradually opened, so that the gas pressure formed after the rainwater in the rainwater riser 2 outside the building 6 flows into the sealed cavity 132 is used to control the opening or closing of the flexible intercepting device 1, without providing an additional power source, so as to achieve a greater degree of utilization of existing resources to control the opening and closing of the flexible intercepting device and achieve the technical effect of reducing control costs.

[0069] Since the second embodiment and the first embodiment described above are two different embodiments of the same inventive concept, the same technical parts of the second embodiment as those of the first embodiment described above will not be described in detail, and the other undescribed parts of the second embodiment can refer to the first embodiment described above.

[0070] Embodiment 3

[0071] See also Figure 5Embodiment 4 of the present application provides a system based on air pressure control of a flexible shutoff device, which is used in the method described in any one of the above embodiments 1 to 2, wherein the system comprises: a drain valve, which is a manual valve or a solenoid valve; a controller, which comprises a memory and a processor, wherein a computer program is stored on the memory, and when the program is executed by the processor, the following steps can be implemented: obtaining the pressure required to close the pressure storage chamber; selecting the installation height of the diverter on the rainwater riser according to the pressure; setting the diverter according to the installation height; and When the flexible intercepting device is closed, rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser flows into the sealed cavity through the first water outlet in the diverter and the water outlet end of the rainwater riser in sequence, and squeezes the air in the sealed cavity to flow into the pressure storage cavity through the vent and the air pipe in sequence, and the pressure storage cavity begins to compress and deform under the action of air pressure, so that the flexible intercepting device is gradually closed; when the flexible intercepting device is opened, rainwater in the sealed cavity is discharged through the drain port, and the pressure storage cavity begins to expand and recover under the action of its own elastic force, so that the flexible intercepting device is gradually opened.

[0072] For another example, when the program is executed by the processor, the following steps can be implemented:

[0073] Obtaining the required pressure for closing the pressure accumulator chamber;

[0074] Selecting the installation height of the diverter on the rainwater riser according to the pressure;

[0075] The flow divider is arranged according to the installation height;

[0076] When the flexible intercepting device is closed, rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser flows into the sealed cavity through the second water outlet in the diverter and the conducting pipe in sequence, and squeezes the air in the sealed cavity to flow into the pressure storage cavity through the vent and the air pipe in sequence, and the pressure storage cavity begins to compress and deform under the action of air pressure, so that the flexible intercepting device is gradually closed;

[0077] When the flexible intercepting device is opened, rainwater in the sealing cavity is discharged through the drain port, and the pressure storage cavity begins to expand and recover under the action of its own elastic force, so that the flexible intercepting device is gradually opened.

[0078] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the fourth embodiment described above is directed to the hardware control part of the first to third embodiments, and all or part of the steps in the various methods of the above embodiments can be completed by instructions, or by controlling the relevant hardware through instructions, and the instructions can be stored in a computer-readable storage medium and loaded and executed by a processor. The computer-readable storage medium may include: a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc.

[0079] Due to the instructions stored in the computer-readable storage medium, the present application can be executed. Figure 1-5 Corresponding to the steps of the control method in the embodiment, therefore, the present application can be implemented as follows Figure 1-5 The beneficial effects that can be achieved by the control method in the corresponding embodiment are detailed in the previous description and will not be repeated here.

[0080] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for controlling a flexible intercepting device based on air pressure, wherein the flexible intercepting device has a pressure storage chamber, a rainwater riser is arranged outside a building adjacent to the flexible intercepting device, and the water outlet of the rainwater riser is placed in a sealed chamber, a vent and a drain are provided on the sealed chamber, and the vent is connected to the pressure storage chamber through an air pipe, characterized in that: The method comprises: Obtaining the pressure required to close the pressure accumulation chamber; Selecting the installation height of the diverter on the rainwater riser according to the pressure; The diverter is arranged according to the installation height; When the flexible intercepting device is closed, rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser flows into the sealed cavity through the first water outlet in the diverter and the water outlet end of the rainwater riser in sequence, and squeezes the air in the sealed cavity to flow into the pressure storage cavity through the vent and the air pipe in sequence, and the pressure storage cavity begins to compress and deform under the action of air pressure, so that the flexible intercepting device is gradually closed; When the flexible intercepting device is opened, rainwater in the sealing cavity is discharged through the drain port, and the pressure storage cavity begins to expand and recover under the action of its own elastic force, so that the flexible intercepting device is gradually opened.

2. The method according to claim 1, characterized in that The step of selecting the installation height of the diverter on the rainwater riser according to the pressure specifically includes: The installation height of the diverter on the rainwater riser is selected based on the installation height on the rainwater riser being the highest water level point and the air pressure formed after the water column in the rainwater riser flows into the sealing cavity gradually squeezing the pressure storage cavity until the flexible intercepting device is closed.

3. The method according to claim 1, characterized in that Also includes: When the water level in the rainwater riser reaches the installation height, the rainwater is discharged through the second water outlet in the diverter.

4. The method according to claim 1, wherein a drain valve is provided on the drain outlet; When the drain valve is a manual valve, the method further comprises: Obtaining the time T1 when the flexible shut-off device needs to be opened and / or the time T2 when the flexible shut-off device needs to be closed; The opening degree of the drain valve is set according to T1 and / or T2.

5. The method according to claim 1, wherein a drain valve is provided on the drain outlet; When the drain valve is a solenoid valve, the method further comprises: Obtaining the time T1 when the flexible shut-off device needs to be opened and / or the time T2 when the flexible shut-off device needs to be closed; The time T3 for opening the solenoid valve is set according to the T1, and / or the time T4 for closing the solenoid valve is set according to the T2.

6. The method according to claim 5, characterized in that The method further comprises: The solenoid valve is powered by solar energy or a battery.

7. A method for controlling a flexible intercepting device based on air pressure, wherein the flexible intercepting device has a pressure storage chamber, a rainwater riser is arranged outside a building adjacent to the flexible intercepting device, the rainwater riser is connected to a sealed chamber through a conducting pipe, one end of the conducting pipe passes through the sealed chamber and is placed at the bottom of the sealed chamber, a vent and a drain are provided on the sealed chamber, the vent is connected to the pressure storage chamber through an air pipe, and the method is characterized in that: The method comprises: Obtaining the required pressure for closing the pressure accumulator chamber; Selecting the installation height of the diverter on the rainwater riser according to the pressure; The flow divider is arranged according to the installation height; When the flexible intercepting device is closed, rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser flows into the sealed cavity through the second water outlet in the diverter and the conducting pipe in sequence, and squeezes the air in the sealed cavity to flow into the pressure storage cavity through the vent and the air pipe in sequence, and the pressure storage cavity begins to compress and deform under the action of air pressure, so that the flexible intercepting device is gradually closed; When the flexible intercepting device is opened, rainwater in the sealing cavity is discharged through the drain port, and the pressure storage cavity begins to expand and recover under the action of its own elastic force, so that the flexible intercepting device is gradually opened.

8. The method according to claim 7, characterized in that The step of selecting the installation height of the diverter on the rainwater riser according to the pressure specifically includes: The installation height of the diverter on the rainwater riser is selected based on the installation height on the rainwater riser being the highest water level point and the air pressure formed after the water column in the rainwater riser flows into the sealing cavity gradually squeezing the pressure storage cavity until the flexible intercepting device is closed.

9. A system based on air pressure control of a flexible shutoff device, used in the method according to any one of claims 1 to 6, characterized in that: The system comprises: A drain valve, wherein the drain valve is a manual valve or a solenoid valve; A controller, the controller comprising a memory and a processor, the memory storing a computer program, the program being capable of implementing the following steps when executed by the processor: Obtaining the pressure required to close the pressure accumulation chamber; Selecting the installation height of the diverter on the rainwater riser according to the pressure; The flow divider is arranged according to the installation height; When the flexible intercepting device is closed, rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser flows into the sealed cavity through the first water outlet in the diverter and the water outlet end of the rainwater riser in sequence, and squeezes the air in the sealed cavity to flow into the pressure storage cavity through the vent and the air pipe in sequence, and the pressure storage cavity begins to compress and deform under the action of air pressure, so that the flexible intercepting device is gradually closed; When the flexible intercepting device is opened, rainwater in the sealing cavity is discharged through the drain port, and the pressure storage cavity begins to expand and recover under the action of its own elastic force, so that the flexible intercepting device is gradually opened.

10. A system based on air pressure control of a flexible shutoff device, used in the method according to any one of claims 7 to 8, characterized in that: The system comprises: A drain valve, wherein the drain valve is a manual valve or a solenoid valve; A controller, the controller comprising a memory and a processor, the memory storing a computer program, the program being capable of implementing the following steps when executed by the processor: Obtaining the required pressure for closing the pressure accumulator chamber; Selecting the installation height of the diverter on the rainwater riser according to the pressure; The flow divider is arranged according to the installation height; When the flexible intercepting device is closed, rainwater flowing into the rainwater riser through the water inlet end of the rainwater riser flows into the sealed cavity through the second water outlet in the diverter and the conducting pipe in sequence, and squeezes the air in the sealed cavity to flow into the pressure storage cavity through the vent and the air pipe in sequence, and the pressure storage cavity begins to compress and deform under the action of air pressure, so that the flexible intercepting device is gradually closed; When the flexible intercepting device is opened, rainwater in the sealing cavity is discharged through the drain port, and the pressure storage cavity begins to expand and recover under the action of its own elastic force, so that the flexible intercepting device is gradually opened.

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