Pneumatic riser diverter

Abstract

The utility model discloses a pneumatic riser diverter, including tee joint piece, flexible cut-off device, drive piece, rainfall monitoring device and control device, tee joint piece is connected to riser tail end to obtain diversion mouth, makes riser have first runner and second runner, the first runner is the runner of riser longitudinal axis, the second runner is the runner of riser longitudinal axis, and the flexible cut-off device, drive piece, rainfall monitoring device and control device, the tee joint piece is connected to riser tail end to obtain the diversion mouth, makes the riser have first runner and second runner, the first runner is the runner of riser longitudinal axis, the second runner is the runner of riser longitudinal axis. The second flow channel is a bypass flow channel, is fixed below the flow dividing port and is located in the first flow channel, the flexible cut-off device has a first state and a second state, the first state is used for opening the first flow channel to enable water flow to flow through the first flow channel, and the second state is used for opening the second flow channel to enable water flow to flow through the second flow channel. The second state is used for closing the first flow channel so that water flows through the second flow channel; the driving part is in driving connection with the flexible cut-off device, and the control device is in signal connection with the rainfall monitoring device and the driving part. Compared with an existing rainwater vertical pipe flow divider, the rainwater vertical pipe flow divider can achieve accurate flow dividing.

Description

Technical Field

[0001] The utility model relates to the technical field of standpipe splitters, in particular to a pneumatic standpipe splitter. Background Art

[0002] At present, most of the rainwater risers in the old urban areas in China are mixed risers, that is, balcony drainage and kitchen drainage are discharged through rainwater risers and then discharged into the municipal rainwater pipe network. There are many such old urban areas in China, resulting in a large amount of sewage mixed in the municipal rainwater pipe network, causing sewage to flow into rivers and other natural water bodies, causing serious pollution to the water environment.

[0003] To address the mixed flow phenomenon in rainwater risers, most of the solutions currently adopted are to equip rainwater risers with riser diverters, such as the "tubular mixed flow riser rainwater and sewage diverter" disclosed in the Chinese invention patent application with publication number CN111894098A. However, the rainwater and sewage riser diverters in the prior art are basically unpowered riser diverters. Such riser diverters rely on water flow to distinguish whether the incoming water is rainwater or sewage, which is prone to misjudgment and has the problem of low discrimination accuracy. Utility Model Content

[0004] In view of this, the utility model proposes a pneumatic riser diverter, which can realize precise diversion and solve the technical problem that the existing rainwater riser diverter relies on water flow to distinguish between rainwater and sewage, which often leads to misjudgment and affects the diversion of rainwater and sewage.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] A pneumatic standpipe flow divider, comprising:

[0007] A tee piece, the tee piece is connected to the end of the riser to obtain a diversion port, and enables the riser to have a first flow channel and a second flow channel, the first flow channel is a flow channel on the longitudinal axis of the riser, and the second flow channel is a bypass flow channel;

[0008] a flexible intercepting device, which is fixed below the diversion port and located in the first flow channel, the flexible intercepting device having a first state and a second state, the first state is used to open the first flow channel so that water flows through the first flow channel, and the second state is used to close the first flow channel so that water flows through the second flow channel;

[0009] a driving member, which is drivingly connected to the flexible shut-off device so as to switch the flexible shut-off device between a first state and a second state;

[0010] A rainfall monitoring device and a control device, wherein the control device is respectively connected to the rainfall monitoring device and the driving member signal so that the flexible intercepting device switches the state according to the rainfall situation.

[0011] In some embodiments, the flexible intercepting device includes an outer cylinder and an elastic inner cylinder, the outer cylinder is used to be fixed to the first flow channel, the elastic inner cylinder is arranged inside the outer cylinder, and the elastic inner cylinder is used to open or close the first flow channel.

[0012] In some embodiments, the elastic inner cylinder is a rubber product, and pressurized gas is filled between the outer cylinder and the elastic inner cylinder to deform the elastic inner cylinder to close the first flow channel, and pressurized gas is released between the outer cylinder and the elastic inner cylinder to cause the elastic inner cylinder to rebound to open the first flow channel.

[0013] In some embodiments, the inner wall of the elastic inner cylinder is circumferentially provided with protrusions, and the protrusions are made of rubber.

[0014] In some embodiments, the protrusion and the elastic inner cylinder are an integrally formed structure.

[0015] In some embodiments, the rubber hardness of the protrusion is lower than the rubber hardness of the elastic inner cylinder.

[0016] In some embodiments, the outer cylinder is a metal part or a shaped rubber part.

[0017] In some embodiments, both ends of the metal member are fixedly connected to the riser respectively.

[0018] In some embodiments, one end of the rubber member is fixedly connected to the standpipe, and the other end of the rubber member is plug-connected to the standpipe.

[0019] Compared with the prior art, the beneficial effects of the utility model mainly include:

[0020] The utility model provides a pneumatic standpipe diverter, which obtains two diversion ports by setting a three-way piece on the standpipe, thereby obtaining a first flow channel on the longitudinal axis of the standpipe and a second flow channel of the bypass flow channel, and a flexible intercepting device is set at the diversion port on the first flow channel to replace the existing unpowered standpipe diverter, and the rainfall can be accurately obtained through the rainfall monitoring device, and the control device controls the operation of the driving member according to the signal of the rainfall size transmitted by the rainfall monitoring device, and when the driving member delivers air, it drives the flexible intercepting device to be in the second closed state, so that the water flows from the second flow channel; when the driving member draws air, it drives the flexible intercepting device to be in the first open state, and the water flows from the first flow channel. In this way, the utility model can realize accurate diversion, avoid misjudgment, and improve the accuracy of diversion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of the pneumatic standpipe flow divider of the utility model;

[0022] Figure 2 It is a schematic diagram of the application scenario of the pneumatic riser splitter described in the utility model.

[0023] As shown in the figure:

[0024] 1. Flexible shut-off device, 11. Outer cylinder, 12. Elastic inner cylinder, 121. Protrusion, 101. Flow channel, 102. Air cavity, 103. Air hole, 2. Vertical pipe, 3. Bypass, 4. Tee piece. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] like Figure 1-2 As shown, the utility model provides a pneumatic standpipe diverter for realizing accurate diversion of rainwater and sewage, mainly comprising a tee 4, a flexible interception device 1, a driving member, a rainfall monitoring device and a control device, wherein the driving member, the rainfall monitoring device and the control device are arranged in a Figure 1 Not drawn in.

[0027] Among them, the tee piece 4 is connected to the end of the riser 2 to obtain two branch ports, so that the riser 2 has a first flow channel and a second flow channel, the first flow channel is the flow channel on the longitudinal axis of the riser 2, and the second flow channel is a bypass flow channel formed by the bypass 3; the flexible intercepting device 1 is fixed at the branch port located in the first flow channel, and the flexible intercepting device 1 has a first state for opening the first flow channel to allow water to flow from the first flow channel, and has a second state for closing the first flow channel to allow water to flow from the second flow channel; the driving member is drivingly connected to the flexible intercepting device 1 so that the flexible intercepting device switches between the first state and the second state, and the control device is respectively connected to the rainfall monitoring device and the driving member signal so that the flexible intercepting device switches the state according to the rainfall situation.

[0028] In this way, the pneumatic riser diverter provided by the utility model can control the operation of the driving member according to the rainfall information obtained by the rainfall monitoring device through the control device. When it is sunny or the accumulated rainfall has not reached a certain value, the driving member does not work, and the flexible intercepting device 1 is in the first open state, allowing water to flow from the first flow channel; when the accumulated rainfall reaches a certain value, the control device controls the driving member to start, and then inflates the flexible intercepting device 1 so that the flexible throttling device 1 is in the second state, then the first flow channel is closed, and the water flows from the second flow channel, thereby realizing the precise diversion of rainwater and sewage, and the utility model has a simple structure and is not easy to cause clogging.

[0029] It can be understood that the driving member is an air compressor or other equipment commonly used in the prior art, which is connected to the flexible intercepting device 1 through a pipeline. The pipeline can be a gas pipeline, or it can be divided into an air intake pipeline and an exhaust pipeline. The rainfall monitoring device is a rainfall sensor commonly used in the prior art. A set of rainfall monitoring devices and control devices are set up in an area, a building or a unit to accurately control the inflation and deflation of the flexible intercepting device 1, so as to achieve accurate control of rainwater and sewage diversion.

[0030] In a preferred embodiment, the flexible shut-off device 1 includes an outer cylinder 11 and an elastic inner cylinder 12, wherein the outer cylinder 11 is used to be fixedly connected to the first flow channel, and the elastic inner cylinder 12 is arranged inside the outer cylinder 11 to open or close the first flow channel.

[0031] In the above technical solution, the specific implementation process of opening or closing the first flow channel is as follows:

[0032] The elastic inner tube 12 is provided with the circulation channel 101, and an air cavity 102 is formed between the outer wall of the elastic inner tube 12 and the inner wall of the outer tube 11. The air cavity 102 has an air hole 103, and the air cavity 102 is connected to the driving member through the air hole 103. When the pressurized gas is filled into the air cavity 102 through the air hole 103, the elastic inner tube 12 flexibly expands relative to the outer tube 11 to gradually close the circulation channel 101. When the pressurized gas in the air cavity 102 is discharged through the air hole 103, the elastic inner tube 12 flexibly contracts relative to the outer tube 11 to gradually open the circulation channel 101. In this way, the opening or closing of the first flow channel is realized. When the first flow channel is opened, the flexible intercepting device 1 is in the first state, and the water flows from the first flow channel; when the first flow channel is closed, the flexible intercepting device 1 is in the second state, and the water flows from the second flow channel. With the cooperation of the rainfall monitoring device and the control device, accurate diversion is realized.

[0033] In a preferred embodiment, the air hole 103 may be one, or may be divided into an air inlet hole and an air outlet hole, so as to be connected to the driving component through an air inlet pipe and an air outlet pipe respectively.

[0034] In a preferred embodiment, the elastic inner cylinder 12 is made of rubber so that it can be deformed to achieve the opening or closing function of the circulation channel 101 .

[0035] In a preferred embodiment, the outer cylinder 11 can be a metal part or a shaped rubber part. When the outer cylinder 11 is a metal part, both ends of the outer cylinder 11 are fixedly connected to the first flow channel (that is, the standpipe 2); when the outer cylinder 11 is a rubber part, one end of the outer cylinder 11 is fixedly connected to the first flow channel (that is, the standpipe 2), and the other end is plug-in connected to the standpipe 2.

[0036] It can be understood that in the above technical solution, the fixed connection is a current fixed connection method of pipelines, such as flange connection, and the insertion connection is to insert the outer tube 11 into the interior of the riser 2.

[0037] In a preferred embodiment, in order to make the first flow channel more sealed when closed, a protrusion 121 is circumferentially provided on the inner wall of the elastic inner tube 12. The protrusion 121 is also made of rubber, and the rubber hardness of the protrusion 121 is lower than that of the elastic inner tube 12. In this way, during the deformation of the elastic inner tube 12, the greater the deformation of the protrusion 121, the more conducive to the sealing effect, so that the elastic inner tube 12 can be easily closed to be completely sealed under very low pressure.

[0038] In a preferred embodiment, the protrusion 121 and the elastic inner tube 12 are an integrally formed structure. Such an integral structure formed by a mold makes it difficult for the protrusion 121 to fall off.

[0039] In the above technical solution, the protrusion 121 is located at the closed position after the elastic inner tube 12 is deformed, and the closed position refers to the maximum deformation position of the elastic inner tube 12 when it deforms and fits against each other until the flow channel 101 is closed. During the deformation process of the elastic inner tube 12, when the elastic inner tube 12 is close to sealing, the protrusions 121 are squeezed against each other and also squeezed with the elastic inner tube 12, which can improve the sealing performance of the elastic inner tube 12.

[0040] It should be noted that when there are many rainwater risers 2 in a building, one control is performed, because there are too many flexible interception devices 1 and the air path is long, the inflation of each flexible interception device 1 is greatly affected, which easily causes the inflation closure time to be too long. Therefore, the utility model sets the air inlet and outlet pipes as hard pipes with larger pipe diameters to reduce the impact of pressure drop on inflation.

[0041] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A pneumatic riser splitter, characterized in that: include: A tee piece, the tee piece is connected to the end of the riser to obtain a diversion port, and enables the riser to have a first flow channel and a second flow channel, the first flow channel is a flow channel on the longitudinal axis of the riser, and the second flow channel is a bypass flow channel; a flexible intercepting device, which is fixed below the diversion port and located in the first flow channel, the flexible intercepting device having a first state and a second state, the first state is used to open the first flow channel so that water flows through the first flow channel, and the second state is used to close the first flow channel so that water flows through the second flow channel; A driving member, which is drivingly connected to the flexible shut-off device so as to switch the flexible shut-off device between a first state and a second state; A rainfall monitoring device and a control device, wherein the control device is respectively connected to the rainfall monitoring device and the driving member signal so that the flexible intercepting device switches the state according to the rainfall situation.

2. The pneumatic standpipe flow divider according to claim 1, characterized in that: The flexible intercepting device comprises an outer cylinder and an elastic inner cylinder, wherein the outer cylinder is used to be fixed to the first flow channel, the elastic inner cylinder is arranged inside the outer cylinder, and the elastic inner cylinder is used to open or close the first flow channel.

3. The pneumatic standpipe flow divider according to claim 2, characterized in that: The elastic inner cylinder is a rubber product, and pressurized gas is filled between the outer cylinder and the elastic inner cylinder to deform the elastic inner cylinder to close the first flow channel, and pressurized gas is released between the outer cylinder and the elastic inner cylinder to cause the elastic inner cylinder to rebound to open the first flow channel.

4. The pneumatic standpipe splitter according to claim 3, characterized in that: The inner wall of the elastic inner cylinder is circumferentially provided with protrusions, and the protrusions are made of rubber.

5. The pneumatic standpipe flow divider according to claim 4, characterized in that: The protrusion and the elastic inner cylinder are an integrally formed structure.

6. The pneumatic standpipe flow divider according to claim 5, characterized in that: The rubber hardness of the protrusion is lower than the rubber hardness of the elastic inner cylinder.

7. The pneumatic standpipe flow divider according to claim 2, characterized in that: The outer cylinder is a metal part or a shaped rubber part.

8. The pneumatic standpipe flow divider according to claim 7, characterized in that: Both ends of the metal piece are fixedly connected to the riser respectively.

9. The pneumatic standpipe flow divider according to claim 7, characterized in that: One end of the rubber member is fixedly connected to the standpipe, and the other end of the rubber member is plug-connected to the standpipe.

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