CN115288262A - Method and system for controlling flexible cut-off device based on air pressure - Google Patents

Abstract

The invention discloses a method and a system for controlling a flexible cut-off device based on air pressure, wherein the method enables rainwater flowing into a rainwater vertical pipe through a water inlet end of the rainwater vertical pipe to sequentially flow into a pressure storage cavity through a flow dividing piece and the rainwater vertical pipe at a flow velocity of V1 and to be discharged through a water outlet at a flow velocity of V2 when the flexible cut-off device is closed, and a flexible sleeve is gradually closed by compression deformation under the action of water pressure; when the flexible cut-off device is opened, rainwater in the pressure storage cavity is discharged at the flow velocity of V3, and the flexible sleeve starts to expand, recover and gradually open under the action of self elasticity. According to the invention, the opening or closing of the flexible cut-off device is controlled through the water column pressure formed by rainwater in the rainwater vertical pipe outside the building, and no additional power source is needed, so that the technical effects of controlling the opening and closing of the flexible cut-off device by utilizing the existing resources to a greater extent and reducing the control cost are achieved.

Description

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

technical field

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

Background technique

The existing equipment for controlling the interception device, such as the buoyancy of the buoyancy of the buoyancy valve for opening and closing control, and the following open weir gates and rotary gates for the opening and closing control of the hydraulic system or electric system, all have the following problems: The cut-off parts are easily entangled by the entanglement in the water environment and will be jammed, unable to open and close normally.

As one of the intercepting devices, the flexible shut-off device has a simple structure and can realize the shut-off function when the pressure storage chamber is closed. Usually, the surface of the accumulator chamber is smooth or can be directly attached to the blocked pipe, so that the accumulator chamber will not be entangled by garbage in the water to cause jamming during the switching state of the accumulator chamber. The flexible shut-off device is driven by air pressure, which is safer than electric drive and more environmentally friendly than hydraulic drive. The flexible shut-off device has the above advantages and is widely promoted, and it is especially suitable for urban sewage and diversion systems.

How to reduce the cost of control and provide a more environmentally friendly cleaning and diversion scheme is the direction that the drainage field has been exploring.

Contents of the invention

The technical problem to be solved by the present invention is how to provide a new method and system for controlling the flexible shutoff device based on air pressure, so as to control the opening and closing of the flexible shutoff device by using existing resources to a greater extent, and reduce the control cost technical effect.

In order to solve the above technical problems, in the first aspect, the present invention provides a method for controlling a flexible shutoff device based on air pressure, the flexible shutoff device has a pressure storage chamber, and rainwater is provided outside a building adjacent to the flexible shutoff device. Standpipe, the water outlet end of the rainwater standpipe is placed in a sealed cavity, the sealed cavity is provided with a vent and a drain, and the vent is communicated with the pressure storage chamber through a trachea. The method It includes: obtaining the pressure required to close the pressure storage chamber; selecting the installation height of the flow diverter on the rainwater standpipe according to the pressure; setting the flow diversion member according to the installation height; , the rainwater flowing into the rainwater standpipe through the water inlet end of the rainwater standpipe flows into the sealed cavity through the first water outlet in the flow diverter and the water outlet end of the rainwater standpipe in turn, and Squeeze the air in the sealed cavity to flow into the accumulator cavity sequentially through the vent and the trachea, and the flexible sleeve starts 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 cavity is discharged through the drain outlet, and the flexible sleeve starts to expand and restore under the action of its own elastic force, so that the flexible shut-off device is gradually opened.

Optionally, the selection of the installation height of the flow diverter on the rainwater riser according to the pressure specifically includes: taking the installation height on the rainwater riser as the highest point of the water level, so that the water column in the rainwater riser The air pressure formed after flowing into the sealed cavity gradually squeezes the flexible sleeve until the flexible intercepting device is closed as a standard to select the installation height of the flow diverter on the rainwater standpipe.

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.

Optionally, a drain valve is provided on the drain port; when the drain valve is a manual valve, the method further includes: obtaining the time T1 and/or the time T2 when the flexible shut-off device needs to be opened; T1 and/or T2, to set the opening of the drain valve.

Optionally, a drain valve is provided on the drain port; when the drain valve is a solenoid valve, the method further includes: obtaining the time T1 for opening and/or the time T2 for closing the flexible shut-off device; Said T1 sets the time T3 for opening the electromagnetic valve, and/or sets the time T4 for closing the electromagnetic valve according to the T2.

Optionally, the method further includes: powering the solenoid valve through solar energy or a storage battery.

In the second aspect, the present invention also provides a method for controlling a flexible intercepting device based on air pressure. The flexible intercepting device has a pressure storage chamber, and a rainwater standpipe is arranged outside a building adjacent to the flexible intercepting device. The rainwater stand The tube communicates with the sealed chamber through a conduction pipe, one end of the conduction pipe passes through the sealed chamber and is placed at the bottom of the sealed chamber, and the sealed chamber is provided with an air vent and a drain port. The air vent communicates with the pressure storage chamber through a trachea, and the method includes: obtaining the required pressure to close the pressure storage chamber; selecting the installation height of the flow diverter on the rainwater standpipe according to the pressure; according to the The diverter is set at the installation height; when the flexible shut-off device is closed, the rainwater flowing into the rain riser through the water inlet end of the rain riser passes through the second water outlet in the diverter, The conduction tube flows into the sealed cavity, and squeezes the air in the sealed cavity to flow into the pressure storage cavity through the vent hole and the air pipe successively, and the flexible sleeve starts to compress under the action of air pressure The deformation makes the flexible shut-off device gradually close; when the flexible shut-off device is opened, the rainwater in the sealed cavity is discharged through the drain, and the flexible sleeve begins to expand and recover under its own elastic force so that the flexible The shut-off device opens gradually.

Optionally, the selection of the installation height of the flow diverter on the rainwater riser according to the pressure specifically includes: taking the installation height on the rainwater riser as the highest point of the water level, so that the water column in the rainwater riser The air pressure formed after flowing into the sealed cavity gradually squeezes the flexible sleeve until the flexible intercepting device is closed as a standard to select the installation height of the flow diverter on the rainwater standpipe.

In a third aspect, the present invention also provides a system for controlling a flexible shut-off device based on air pressure, which is used in any one of the methods described above, and the system includes: a drain valve, and the drain valve is a manual valve or a solenoid valve; A controller, the controller includes a memory and a processor, the memory is stored with a computer program, and when the program is executed by the processor, the following steps can be realized: obtaining the pressure required to close the pressure accumulator chamber; according to the The pressure selects the installation height of the diverter on the rainwater standpipe; the diverter is set according to the installation height; when the flexible intercepting device is closed, the rainwater stand flows into the rainwater stand The rainwater in the pipe 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 pass through the vent, the The air pipe flows into the pressure storage chamber, and the flexible sleeve begins to compress and deform under the action of air pressure so that the flexible shutoff device gradually closes; when the flexible shutoff device is opened, the rainwater in the sealed cavity passes through the The water outlet is discharged, and the flexible sleeve starts to expand and restore under the action of its own elastic force, so that the flexible shut-off device is gradually opened.

In the fourth aspect, the present invention also provides a system for controlling a flexible shut-off device based on air pressure, which is used in any one of the above methods, the system comprising: a drain valve, the drain valve is a manual valve or a solenoid valve; A controller, the controller includes a memory and a processor, and a computer program is stored on the memory, and when the program is executed by the processor, the following steps can be realized: obtaining the required pressure for closing the pressure accumulator chamber; according to the The pressure selects the installation height of the diverter on the rainwater standpipe; the diverter is set according to the installation height; when the flexible intercepting device is closed, the rainwater stand flows into the rainwater stand The rainwater in the pipe flows into the sealed chamber through the second water outlet in the diverter and the conduction pipe in turn, and squeezes the air in the sealed chamber to flow in through the air vent and the air pipe in turn. In the pressure storage chamber, the flexible sleeve begins to compress and deform under the action of air pressure so that the flexible shutoff device gradually closes; when the flexible shutoff device is opened, the rainwater in the sealed cavity is discharged through the drain port , the flexible sleeve begins to expand and restore under the action of its own elastic force, so that the flexible shut-off device is gradually opened.

Beneficial effect:

The method for controlling the flexible shut-off device based on air pressure provided by the present invention, the method obtains the pressure of the pressure storage chamber; and selects the installation height of the flow diverter on the rainwater standpipe according to the pressure; and sets the flow diverter according to the installation height; When the flexible shut-off device is closed, the rainwater flowing into the rainwater standpipe through the water inlet end of the rainwater standpipe flows into the sealed cavity through the water inlet in the diverter, the first water outlet, and the water outlet end of the rainwater standpipe in sequence, and squeezes out The air in the compressed sealing chamber flows into the pressure storage chamber through the air vent and the air pipe 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 shut-off device begins to be compressed and deformed Then the flexible shut-off device is gradually closed; when the flexible shut-off device is opened, the rainwater in the sealed cavity is discharged through the drain port, so that the gas storage space in the sealed cavity is gradually increased, and the gas in the pressure storage cavity flows back into the sealed cavity , and then the air pressure formed by the gas in the sealed cavity gradually decreases, and the flexible shut-off device begins to expand and recover under its own elastic force, and then the flexible shut-off device is gradually opened, so that the rainwater in the rainwater standpipe outside the building flows into the sealed cavity Finally, the formed gas pressure is used to control the opening or closing of the flexible shut-off device 1 without providing an additional power source, so as to achieve greater utilization of existing resources to control the opening and closing of the flexible shut-off device and reduce control costs technical effect.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the specific embodiments of the present invention are enumerated below.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic diagram of applicable scenarios of the control method provided by Embodiment 1 of the present invention;

FIG. 2 is a schematic diagram of applicable scenarios of the control method provided by Embodiment 2 of the present invention;

FIG. 3 is a flowchart of a control method provided by Embodiment 1 of the present invention;

FIG. 4 is a flowchart of a control method provided in Embodiment 2 of the present invention;

Fig. 5 is a structural block diagram of the control system provided by the third embodiment of the present invention;

Reference signs:

Flexible closure device-1, pressure storage chamber-11, drain port-12, communication port-13, drain valve-14, sealing chamber-132

Rainwater riser-2, water inlet-21, water outlet-22;

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

Connecting pipe-4;

Well body-5;

building - 6;

Trachea-7.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art belong to the scope of protection of the present invention; wherein the keyword "and/or" involved in this embodiment means and, or two Situation, in other words, A and/or B mentioned in the embodiment of the present invention represents two situations of A and B, A or B, and describes the three states that A and B exist, such as A and/or B, means: only includes A and does not include B; only includes B and does not include A; includes A and B.

Meanwhile, 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 be an intermediate component. When a component is said to be "connected to or connected to" another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or there may be an intervening component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the embodiments of the present invention are for the purpose of illustration only, and are not intended to limit the present invention.

It should be noted that, in order to describe the present invention in more detail, so that those skilled in the art can understand the present invention more clearly and clearly, and then 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 terms and applicable scenarios involved in it:

The rainwater riser is a pipe arranged on the outside of the building for transporting rainwater, sewage or mixed water of rainwater and sewage.

Embodiment one

Before introducing the method for controlling the flexible closure device based on air pressure provided in Embodiment 1 of the present application, in order to better describe the method in detail to support the technical problems to be solved by the present invention, the following first describes the method provided in Embodiment 2 of the present application. The specific application scenarios applicable to this method are described in detail.

Please refer to Fig. 1 in detail, which is a specific application scenario used by the method provided in Embodiment 1, that is, a block diagram of the overall structure of a certain drainage system, which includes a well body 5, a rainwater riser 2, a flexible intercepting device 1 and Air pressure control components. Wherein, the air pressure control assembly controls the opening and closing of the flexible shutoff device 1 based on the air pressure. The flexible shutoff device 1 has a pressure storage chamber 11 with an adjustable volume, and a rainwater riser 2 is arranged outside the building 6 adjacent to the flexible shutoff device 1 . The control assembly specifically includes: a sealed cavity 132 , an air pipe 7 and a flow divider 3 . The sealed cavity 132 is provided with a vent 121 and a drain 122, the outlet end 22 of the rainwater standpipe 2 passes through the sealed cavity 132 and is located at the bottom of the sealed cavity 132, and the diverter installed on the rainwater standpipe 2 3 has a water inlet 31, a first water outlet 32 and a second water outlet 33, the water inlet 31 communicates with the water inlet end 21 of the rainwater vertical pipe 2, the first water outlet 32 is connected with the rainwater vertical pipe The water outlet 22 of the pipe 2 is connected; the air pipe 7 is connected with the vent 121 and the pressure storage chamber 11 respectively;

It should be noted that the above-mentioned flexible shut-off device 1 is a device with elastic deformation, such as a flexible rubber sleeve. The water storage space for containing the rainwater space can also be directly integrally formed by a flexible rubber sleeve with a double-layer structure, which is not limited in this embodiment, as long as the flexible intercepting device with elastic deformation function 1 can be satisfied. are applicable to the present invention.

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 nozzles corresponding to the three-way pipe, so that the rainwater flowing through the rainwater riser 2 The diversion is realized through the three-way pipe, and a part of the rainwater is divided to form a water column pressure in the rainwater standpipe, and the other part of the rainwater is directly discharged to the ground after being divided, so as to realize the rainwater flowing through the part where the diverter is set. Under the action, the technical effect of shunting is achieved.

The above is the specific application scenario applicable to the second embodiment of the present application. Please continue to refer to Figure 3 below to describe in detail the method for controlling the flexible shut-off device based on air pressure provided by the second embodiment of the present application:

A method of controlling a flexible closure device based on air pressure, the method comprising:

Obtaining the pressure required to close the pressure accumulator chamber;

Select the installation height of the diverter on the rainwater standpipe according to the pressure;

setting the diverter according to the installation height;

When the flexible shut-off device is closed, the rainwater flowing into the rainwater standpipe through the water inlet end of the rainwater standpipe passes through the first water outlet in the flow divider and the water outlet end of the rainwater standpipe in turn. Flow into the sealed chamber, and squeeze the air in the sealed chamber to flow into the pressure storage chamber through the vent and the air pipe in turn, and the flexible sleeve begins to compress and deform under the action of air pressure so that the flexible The shut-off device gradually closes;

When the flexible shut-off device is opened, the rainwater in the sealed cavity is discharged through the drain outlet, and the flexible sleeve starts to expand and restore under its own elastic force, so that the flexible shut-off device is gradually opened.

Specifically, the method obtains the pressure of the accumulator 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; The water inlet 21 of the rainwater standpipe 2 flows into the rainwater in the rainwater standpipe 2, and the water inlet 31, the first water outlet 32, and the water outlet 22 of the rainwater standpipe 2 in the flow diverter 3 flow into the sealed cavity 132 in turn, and The air in the squeezed sealing chamber 132 flows 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 flow is cut off flexibly. The device 1 starts to be compressed and deformed, and then the flexible shut-off device 1 is gradually closed; when the flexible shut-off device 1 is opened, the rainwater in the sealed cavity 132 is discharged through the drain port 122, so that the gas containing space in the sealed cavity 132 gradually increases, The gas in the pressure storage chamber 11 flows back into the sealing chamber 132, and then the air pressure formed by the gas in the sealing chamber 132 gradually decreases, and the flexible shut-off device 1 begins to expand and recover under the action of its own elastic force, and then the flexible shut-off device 1 is gradually opened. In this way, after the rainwater in the rainwater riser 2 outside the building 6 flows into the sealed cavity 132, the gas pressure formed controls the opening or closing of the flexible intercepting device 1 without providing an additional power source to achieve a greater degree of The existing resources are used to control the opening and closing of the flexible shut-off device, so as to achieve the technical effect of reducing the control cost.

In some possible implementation manners, the selection of the installation height of the flow diverter on the rainwater standpipe according to the pressure specifically includes: taking the installation height on the rainwater standpipe as the highest point of the water level, making the rainwater stand The air pressure formed after the water column in the pipe flows into the sealed cavity gradually squeezes the flexible sleeve until the flexible shut-off device is closed to select the installation of the flow diverter on the rainwater riser high.

In some possible implementations, when the water level in the rainwater standpipe reaches the installation height, the rainwater is discharged through the second water outlet in the diverter. Those skilled in the art can understand that with the increase of the amount of rainwater entering the rainwater standpipe, the rainwater in the rainwater standpipe will be diverted to the sealed cavity through the first water outlet in the diverter on the one hand, and will be absorbed by the sealing gas in the sealed cavity. Squeeze to form pneumatic pressure to compress the accumulator chamber. At this time, the water level in the rainwater standpipe will gradually rise. The technical effect that the normal discharge of rainwater in the rainwater standpipe is not affected during the closing process of the flexible intercepting device is controlled.

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 shutoff device; according to the T1 and/or T2, setting the opening degree of the drain valve. Among them, in order to better realize the control of the opening and/or closing time of the flexible shut-off device 1, a manual valve can be set, and the opening and/or closing time of the flexible shut-off device 1 can be determined in advance according to the required time. Setting the opening degree of the manual valve can then realize the preset flow rate V2, so as to achieve the technical effect of precise control. In addition, in this embodiment, the manual valve does not require an additional power supply, which makes it possible to effectively achieve a completely powerless control effect in this embodiment.

In some possible implementations, when the drain valve is a solenoid valve, the method further includes: acquiring the opening time T1 and/or closing time T2 of the flexible shutoff device; setting the time T2 according to the T1 The time T3 when the solenoid valve is turned on, and/or the time T4 when the solenoid valve is closed is set according to the T2. Among them, in order to better realize the "real-time" control of the opening and/or closing time of the flexible shut-off device 1, and achieve the technical effect of "precise" control of opening and/or closing, it is possible to set the solenoid valve and add The controller controls the solenoid valve in real time, such as setting the opening time T3 in advance. When the opening time T3 is reached, the controller sends a control command to control the action of the solenoid valve, and sets the closing time T4. When the closing time T4 is reached , the controller sends a control command to control the action of the solenoid valve. In this way, the technical effect of "real-time" and "precise" control is realized. In addition, because the power consumption of the solenoid valve is not high, it can be powered by batteries or solar energy, effectively realizing the control effect of micro power and low power consumption.

Embodiment two

Before introducing the method for controlling the flexible shut-off device based on air pressure provided in the second embodiment of the present application, in order to better describe the method in detail to support the technical problems to be solved by the present invention, the following first describes the method provided in the second embodiment of the present application. The specific application scenarios applicable to this method are described in detail.

Please refer to Fig. 2 in detail, which is a specific application scenario used by the method provided in the second embodiment, that is, a block diagram of the overall structure of a certain drainage system, which includes a well body 5, a rainwater standpipe 2, a flexible intercepting device 1 and Air pressure control components. Wherein, the air pressure control assembly controls the opening and closing of the flexible shutoff device 1 based on the air pressure. The flexible shutoff device 1 has a pressure storage chamber 11 with an adjustable volume, and a rainwater riser 2 is arranged outside the building 6 adjacent to the flexible shutoff device 1 . The control assembly specifically includes: a sealed chamber 132 , a conduit 41 , a gas pipe 7 and a flow divider 3 . A vent 121 and a drain 122 are provided on the sealed cavity 132, and 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, and the water inlet 31 is connected to the The water inlet 21 of the rainwater standpipe 2 is connected, and the first water outlet 32 is connected with the water outlet 22 of the rainwater standpipe 2; the air pipe 7 is connected with the vent 121 and the pressure storage chamber 11 respectively; One end of the pipe 41 communicates with the second water outlet 33 , and the other end passes through the sealed cavity 132 and reaches the bottom of the sealed cavity 132 .

It should be noted that the flexible shut-off device 1 in the above-mentioned embodiment 2 is a device with elastic deformation, such as a flexible rubber sleeve. The formed water storage space with a space for accommodating rainwater may also be directly integrally formed by a flexible rubber sleeve with a double-layer structure. All flexible shutoff devices 1 are applicable to the present invention.

In this applicable scenario, the flow divider 3 includes: a buffer box 34 and a partition 35 . Wherein, 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 mouth of the rainwater riser 2 connected with the first water outlet 32 passes through The first water outlet 32 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 A circulation area is formed 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 area; The opening height of the second water outlet on the buffer box is lower than the height at which the nozzle of the rainwater standpipe passes through the first water outlet and is located in the buffer box. Then, the rainwater flowing through the rainwater standpipe 2 is diverted through the diverter, and after a part of the rainwater is divided, a water column pressure is formed in the conduction pipe 41, and the other part of the rainwater is directly discharged to the ground through the rainwater standpipe 2 after being divided, so as to The technical effect of diverting the rainwater flowing through the position where the diverter is set is realized under the action of the diverter. In addition, the reason why the opening height of the second water outlet on the buffer box is lower than the height of the rainwater standpipe passing through the first water outlet is located at the height of the buffer box, because only the first water outlet When the height of the second water outlet is lower than the height of the nozzle of the rainwater standpipe, 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.

In this applicable scenario, the air pipe 3 has a bending height equal to or greater than the height of the rainwater riser in the buffer box 34 after passing through the first water outlet 33 .

In this applicable scenario, the drain port 122 is provided with a drain valve 14, the drain valve 14 is a manual valve, the manual valve has an opening, and the opening is based on the opening of the flexible shut-off device. time T1 and/or off time T2 to set.

The above is the specific application scenario applicable to the third embodiment of the present application. Please continue to refer to Figure 4 below to describe in detail the method for controlling the flexible shut-off device based on air pressure provided by the third embodiment of the present application:

A method of controlling a flexible closure device based on air pressure, the method comprising:

Obtaining the pressure required to close the pressure accumulator chamber;

Select the installation height of the diverter on the rainwater standpipe according to the pressure;

setting the diverter according to the installation height;

When the flexible shut-off device is closed, the rainwater flowing into the rainwater standpipe through the water inlet end of the rainwater standpipe flows into the rainwater standpipe through the second water outlet in the flow diverter and the conduction pipe successively. The air in the sealed cavity is squeezed, and the air in the sealed cavity flows into the pressure storage cavity through the vent hole and the air pipe in turn, and the flexible sleeve begins to compress and deform under the action of air pressure so that the flexible shut-off device gradually closure;

When the flexible shut-off device is opened, the rainwater in the sealed cavity is discharged through the drain outlet, and the flexible sleeve starts to expand and restore under its own elastic force, so that the flexible shut-off device is gradually opened.

Specifically, the third embodiment obtains the pressure required to close the pressure storage chamber; selects the installation height of the flow diverter on the rainwater standpipe according to the pressure; and sets the flow diverter according to the installation height; In this way, when the flexible shut-off device 1 is closed, the rainwater flowing into the rainwater standpipe 2 through the water inlet end 21 of the rainwater standpipe 2 passes through the water inlet 31, the second water outlet 33, and the conduction pipe in the flow diverter 3 in sequence. 41 flows into the sealed cavity 132, and squeezes the air in the sealed cavity 132 to flow into the pressure storage cavity 11 through the vent 121 and the air pipe 7 in turn, so that as the water volume in the sealed cavity increases, the air pressure gradually increases, and in Under the action of the air pressure, the flexible shut-off device 1 begins to be compressed and deformed, and then the flexible shut-off device 1 is gradually closed; The gas accommodation space gradually increases, the gas in the pressure storage chamber 11 flows back into the sealed chamber 132, and then the air pressure formed by the gas in the sealed chamber 132 gradually decreases, and the flexible shut-off device 1 begins to expand and recover under the action of its own elastic force. Realize the gradual opening of the flexible intercepting device 1, so that the opening or closing of the flexible intercepting device 1 can be controlled by the gas pressure formed after the rainwater in the rainwater riser 2 outside the building 6 flows into the sealed cavity 132, without providing an additional power source , in order to achieve a greater degree of utilization of existing resources to control the opening and closing of the flexible closure device, to achieve the technical effect of reducing control costs.

Since this second embodiment and the above-mentioned first embodiment are two different first embodiments of the same inventive concept, the technical parts in this second embodiment that are the same as those of the above-mentioned first embodiment will not be described in detail, and other details in this second embodiment are not described in detail. Part of it can refer to the first embodiment above.

Embodiment three

Please refer to Fig. 5. Embodiment 4 of the present application provides a system for controlling a flexible closure device based on air pressure, which is used in the method described in any one of Embodiments 1 to 2 above. The system includes: a drain valve, the The drain valve is a manual valve or a solenoid valve; a controller, the controller includes a memory and a processor, and a computer program is stored on the memory, and when the program is executed by the processor, the following steps can be realized: obtaining and closing the pressure accumulator The pressure required by the chamber; the installation height of the diverter on the rainwater standpipe is selected according to the pressure; the diverter is set according to the installation height; when the flexible intercepting device is closed, through the rainwater riser The rainwater that flows into the rainwater standpipe from the water inlet end of the rainwater standpipe flows into the sealed cavity through the first water outlet in the flow diverter and the water outlet end of the rainwater standpipe in turn, and squeezes the rainwater in the sealed cavity. The air flows into the pressure accumulator chamber sequentially through the air vent and the air pipe, and the flexible sleeve begins to compress and deform under the action of air pressure so that the flexible shut-off device gradually closes; when the flexible shut-off device is opened, the The rainwater in the sealed cavity is discharged through the drain port, and the flexible sleeve starts to expand and restore under the action of its own elastic force, so that the flexible shut-off device is gradually opened.

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

Obtaining the required pressure to close the accumulator chamber;

Select the installation height of the diverter on the rainwater standpipe according to the pressure;

setting the diverter according to the installation height;

When the flexible shut-off device is closed, the rainwater flowing into the rainwater standpipe through the water inlet end of the rainwater standpipe flows into the rainwater standpipe through the second water outlet in the flow diverter and the conduction pipe successively. The air in the sealed cavity is squeezed, and the air in the sealed cavity flows into the pressure storage cavity through the vent hole and the air pipe in turn, and the flexible sleeve begins to compress and deform under the action of air pressure so that the flexible shut-off device gradually closure;

When the flexible shut-off device is opened, the rainwater in the sealed cavity is discharged through the drain outlet, and the flexible sleeve starts to expand and restore under its own elastic force, so that the flexible shut-off device is gradually opened.

Those skilled in the art can clearly understand that for the convenience and brevity of description, the fourth embodiment described above is for the hardware control part of the first to third embodiments, all or part of the steps in the various methods of the above embodiments can be passed Instructions are implemented, or related hardware is controlled by instructions, and the instructions can be stored in a computer-readable storage medium, and loaded and executed by a processor. Wherein, the computer-readable storage medium may include: a read-only memory (Read Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

Because the instructions stored in the computer-readable storage medium can execute the steps of the control method in the embodiment corresponding to Fig. 1-5 of the present application, therefore, the control method in the embodiment corresponding to Fig. 1-5 of the present application can be realized For the beneficial effects achieved, see the previous description for details, and will not be repeated here.

In this paper, specific examples are used to illustrate the principle and implementation of the application. The description of the above embodiments is only used to help understand the method and core idea of the application; meanwhile, for those skilled in the art, according to the application Thoughts, specific implementation methods and application ranges all have changes. In summary, the content of this specification should not be construed as limiting the application.

Claims (10)

1. A method for controlling a flexible cut-off device based on air pressure, wherein the flexible cut-off device is provided with a pressure storage cavity, a rainwater vertical pipe is arranged outside a building close to the flexible cut-off device, the water outlet end of the rainwater vertical pipe is arranged in a sealed cavity, the sealed cavity is provided with an air vent and a water outlet, the air vent is communicated with the pressure storage cavity through an air pipe, and the method is characterized by comprising the following steps:

acquiring the pressure required for closing the pressure accumulation cavity;

selecting the installation height of the flow dividing piece on the rainwater vertical pipe according to the pressure intensity;

setting the flow dividing piece according to the installation height;

when the flexible cut-off equipment is closed, rainwater flowing into the rainwater vertical pipe through the water inlet end of the rainwater vertical pipe sequentially flows into the sealed cavity through the first water outlet in the flow dividing piece and the water outlet end of the rainwater vertical pipe, and extrudes air in the sealed cavity to sequentially flow into the pressure storage cavity through the vent hole and the air pipe, and the flexible sleeve starts to be compressed and deformed under the action of air pressure so that the flexible cut-off equipment is gradually closed;

when the flexible cut-off device is opened, rainwater in the sealing cavity is discharged through the water outlet, and the flexible sleeve starts to expand and recover under the action of self elasticity, so that the flexible cut-off device is gradually opened.

2. The method of claim 1, wherein selecting the setting height of the diverter on the storm water riser according to the pressure comprises:

and selecting the mounting height of the flow dividing piece on the rainwater vertical pipe by taking the mounting height on the rainwater vertical pipe as the highest point of the water level, and gradually pressing the flexible sleeve by air pressure formed after the water column in the rainwater vertical pipe flows into the sealing cavity until the flexible cut-off device is closed.

3. The method of claim 1, further comprising:

when the water level height in the rainwater stand pipe reaches the installation height, the rainwater is discharged through a second water outlet in the flow dividing piece.

4. The method of claim 1, wherein a drain valve is disposed on the drain port; characterized in that, when the drain valve is a manual valve, the method further comprises:

acquiring the time T1 for opening and/or the time T2 for closing the flexible cut-off device;

and setting the opening degree of the drain valve according to the T1 and/or the T2.

5. The method of claim 1, wherein a drain valve is disposed on the drain port; characterized in that, when the drain valve is an electromagnetic valve, the method further comprises:

acquiring the time T1 for opening and/or the time T2 for closing the flexible cut-off device;

the time T3 for which the solenoid valve is open is set according to the T1, and/or the time T4 for which the solenoid valve is closed is set according to the T2.

6. The method of claim 5, wherein the method further comprises:

the electromagnetic valve is powered by solar energy or a storage battery.

7. The utility model provides a method based on flexible cut-off equipment of atmospheric pressure control, flexible cut-off equipment has the pressure storage chamber, is close to the building of flexible cut-off equipment outside and is provided with the rainwater riser, the rainwater riser is linked together through a conduction pipe and sealed chamber, the one end of conduction pipe passes sealed chamber and places in the bottom in sealed chamber, vent and outlet have been seted up on the sealed chamber, the vent is linked together through a trachea and pressure storage chamber, its characterized in that, the method includes:

acquiring the required pressure for closing the pressure storage cavity;

selecting the installation height of the flow dividing piece on the rainwater vertical pipe according to the pressure intensity;

setting the flow dividing piece according to the installation height;

when the flexible cut-off device is closed, rainwater flowing into the rainwater vertical pipe through the water inlet end of the rainwater vertical pipe sequentially flows into the sealing cavity through the second water outlet in the flow dividing piece and the conduction pipe, and extrudes air in the sealing cavity to sequentially flow into the pressure storage cavity through the vent and the air pipe, and the flexible sleeve starts to compress and deform under the action of air pressure so that the flexible cut-off device is gradually closed;

when the flexible cut-off device is opened, rainwater in the sealing cavity is discharged through the water outlet, and the flexible sleeve starts to expand and recover under the action of self elasticity, so that the flexible cut-off device is gradually opened.

8. The method of claim 7, wherein selecting the setting height of the diverter on the storm water riser according to the pressure comprises:

and selecting the mounting height of the flow dividing piece on the rainwater vertical pipe by taking the mounting height on the rainwater vertical pipe as the highest point of the water level, and gradually pressing the flexible sleeve by air pressure formed after the water column in the rainwater vertical pipe flows into the sealing cavity until the flexible cut-off device is closed.

9. A system for controlling a flexible cut-off device based on air pressure, for use in a method according to any one of claims 1-5, characterized in that it comprises:

the drain valve is a manual valve or an electromagnetic valve;

a controller comprising a memory and a processor, the memory having stored thereon a computer program that when executed by the processor is capable of performing the steps of:

acquiring the pressure required for closing the pressure accumulation cavity;

selecting the installation height of the flow dividing piece on the rainwater vertical pipe according to the pressure intensity;

setting the flow dividing piece according to the installation height;

when the flexible cut-off device is closed, rainwater flowing into the rainwater vertical pipe through the water inlet end of the rainwater vertical pipe sequentially flows into the sealing cavity through the first water outlet in the flow dividing piece and the water outlet end of the rainwater vertical pipe, and extrudes air in the sealing cavity to sequentially flow into the pressure storage cavity through the vent and the air pipe, and the flexible sleeve starts to be compressed and deformed under the action of air pressure so that the flexible cut-off device is gradually closed;

when the flexible cut-off device is opened, rainwater in the sealing cavity is discharged through the water outlet, and the flexible sleeve starts to expand and recover under the action of self elasticity, so that the flexible cut-off device is gradually opened.

10. A system for controlling a flexible cut-off device based on air pressure, for use in a method according to any one of claims 6-8, characterized in that it comprises:

the drain valve is a manual valve or an electromagnetic valve;

a controller comprising a memory and a processor, the memory having stored thereon a computer program that when executed by the processor is capable of performing the steps of:

acquiring the pressure required for closing the pressure storage cavity;

selecting the installation height of the flow dividing piece on the rainwater vertical pipe according to the pressure intensity;

setting the flow dividing piece according to the installation height;

when the flexible cut-off device is closed, rainwater flowing into the rainwater vertical pipe through the water inlet end of the rainwater vertical pipe sequentially flows into the sealing cavity through the second water outlet in the flow dividing piece and the conduction pipe, and extrudes air in the sealing cavity to sequentially flow into the pressure storage cavity through the vent and the air pipe, and the flexible sleeve starts to compress and deform under the action of air pressure so that the flexible cut-off device is gradually closed;

when the flexible cut-off device is opened, rainwater in the sealing cavity is discharged through the water outlet, and the flexible sleeve starts to expand and recover under the action of self elasticity, so that the flexible cut-off device is gradually opened.

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