CN114164847B - Emergency drainage system and method for underground building - Google Patents
Emergency drainage system and method for underground building Download PDFInfo
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- CN114164847B CN114164847B CN202111335017.9A CN202111335017A CN114164847B CN 114164847 B CN114164847 B CN 114164847B CN 202111335017 A CN202111335017 A CN 202111335017A CN 114164847 B CN114164847 B CN 114164847B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/02—Shut-off devices
- E03F7/04—Valves for preventing return flow
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to an emergency drainage system and an emergency drainage method for an underground building, which mainly relate to the technical field of underground building drainage and comprise a pipeline unit, an equipment unit and a control unit. The control module is respectively connected with the pipeline unit and the equipment unit, monitors and controls the working states of all parts of the emergency drainage system through the control module, automatically opens and closes the pressure equipment, and can realize intelligent emergency drainage; the energy-saving high-efficiency emergency drainage can be realized by monitoring the actual drainage amount of the underground building and automatically switching the drainage pipeline; by arranging the check valve on the drainage pipeline, the inlet of the horizontal drainage pipeline is higher than the outlet, and the outdoor sewage is prevented from flowing backwards.
Description
Technical Field
The invention relates to the technical field of underground building drainage, in particular to an emergency drainage system and an emergency drainage method for an underground building.
Background
In the process of building engineering design and construction, when the indoor ground of a building is lower than the outdoor ground, an underground drainage system is required to be arranged for preventing indoor ponding of an underground building, and sewage is discharged to an underground water collecting tank and then is continuously discharged to an outdoor sewage pit. In the construction process, the sewage in the water collecting tank is directly discharged to an outdoor sewage pit by adopting a gravity drainage mode; in order to prevent the height of the water level in the outdoor sump from being higher than that of the indoor underground water collecting tank, under the condition that a gravity drainage mode cannot be adopted, a mode of placing a sump bottom with a sewage pump and pressure drainage is adopted. However, in case of storm or sudden and abrupt increase of the water content in the underground water collecting tank, the sewage in the underground water collecting tank is not discharged in time due to the excessive water content in both the above two modes, so that the ground of the underground building is accumulated, and the inside of the underground building is seriously flooded. In this case, the two ways cannot meet the emergency drainage requirement of the underground building.
The Chinese patent application No. CN202010554396.X discloses a building drainage system, which solves the problem that the existing gravity drainage system is applied to basement drainage of a building system and cannot prevent backflow. The building drainage system comprises a drainage check system, wherein the drainage check system is arranged on a basement drainage main pipe; the system also comprises a vertical pipe, a ground branch pipe, a basement branch pipe and a basement drainage main pipe; the ground branch pipes are arranged in each floor above the ground, the basement branch pipes and the basement drainage main pipes are arranged in the basement, and the ground branch pipes and the basement branch pipes are connected with drainage appliances of the floor; the ground branch pipe and the basement branch pipe are communicated with the vertical pipe, after all the branch pipes are connected with the vertical pipe, the water outlet of the vertical pipe is connected with the water inlet of the basement drainage main pipe, and the water outlet of the basement drainage main pipe is connected with the drainage check system. The invention is suitable for the situation that the lowest drainage point of the basement is higher than the height of the garden drain pipe net, and can effectively prevent drainage from flowing backwards. The building drainage system does not need to separately arrange a water collecting pit for underground drainage, saves cost and shortens construction period.
Chinese patent application number CN201821371765.6 discloses a basement drainage structure and basement, and the basement drainage structure includes drainage group and isolation layer, and drainage group is located the bottom plate bottom of basement, and this drainage group is used for in time discharging the water that upwards permeates from the basement, avoids receiving too big water pressure because of ponding under the bottom plate of basement. Meanwhile, the isolation layer is positioned between the drainage group and the backfill layer, and the isolation layer is used for isolating the drainage group from the backfill layer. When atmospheric precipitation, the isolation layer can block the earth's surface rainwater that permeates from the backfill layer outside the drainage group, avoids a large amount of earth's surface rainwater to get into in the drainage group and leads to the drainage group out of control.
Chinese patent application number CN200810063502.3 discloses a basement project water-proof and drainage method and system, the wall base of the outer wall of the basement project is deep into the watertight or slightly-permeable rock soil layer or the continuous thick-layer-shaped cement soil layer to form the trunk component for intercepting the groundwater, the wall base of the outer wall is treated by adopting detail structure intercepting measures to intercept the groundwater from the periphery of the basement project; the cushion layer of the basement engineering bottom plate and the slope finding layer of the top plate are formed by a combined waterproof layer; the post-pouring strip, the deformation joint and the horizontal construction joint at the lower part of the outer wall of the basement are treated by adopting a waterproof structure and waterproof measures; the basement engineering is provided with a drainage system, the groundwater and ground water at the bottom plate of the basement engineering are discharged into the municipal drainage pipeline through the part of the drainage system, which is positioned on the bottom plate, and the rainwater at the bottom of the soil layer covered on the top plate of the basement is discharged into the municipal drainage pipeline through the part of the drainage system, which is positioned indoors. The invention can ensure good waterproof and drainage effects of basement engineering, reduce engineering cost and fast construction progress, and greatly improve the durability and reliability of the basement engineering enclosure structure, waterproof layer and pipelines.
However, the technical solution of the prior art disclosed above, the technical problems to be solved and the beneficial effects to be generated are different from those of the present invention, and the problems of automatically switching the internal working state of the system, saving energy, high efficiency and safely performing emergency drainage when the accumulated water amount of the underground water collecting pool is too large are not solved.
Disclosure of Invention
Therefore, the invention provides an emergency drainage system and an emergency drainage method for an underground building, which are used for solving the problems of energy conservation, high efficiency and safety in emergency drainage by automatically switching the internal working state of the system when the sewage amount of the underground building is overlarge in the prior art.
In order to achieve the above object, the present invention provides an emergency drainage system and method for an underground building, including a pipe unit, an equipment unit, and a control unit, wherein,
the pipeline unit comprises a first pipeline, a second pipeline and a third pipeline, is connected with the equipment unit and is used for draining accumulated water in the underground water collecting tank;
the equipment unit comprises a submersible pump, a water suction pump, a first check valve, a second check valve and a third check valve; the submerged pump is arranged at the bottom of the underground water collecting tank, and the water outlet of the submerged pump is connected with the inlet of the vertical pipeline on the side wall of the underground building and is used for draining the accumulated water pressure in the underground water collecting tank; the water suction pump is connected with the third pipeline and is used for emergently draining accumulated water in the underground water collecting tank;
the control unit comprises a central control module, a device switch and a sensor, wherein the central control module is in communication connection with the device switch and the sensor and is used for monitoring and controlling the working states of all the components.
Further, the first pipeline inlet is positioned at the bottom of the side wall of the underground water collecting tank, the outlet of the first pipeline inlet is connected to the outdoor sump and positioned at a first liquid level of the outdoor sump, and the first pipeline is connected with the first check valve; the inlet of the second pipeline is positioned below the outdoor ground, the outlet of the second pipeline is connected to the outdoor sump and positioned at a second liquid level of the outdoor sump, and the second pipeline is connected with the second check valve; the third pipeline is positioned above the outdoor ground, the inlet of the third pipeline is connected with the inlet of the second pipeline, the outlet of the third pipeline is connected to the outdoor sump and is positioned at the second liquid level of the outdoor sump, the third pipeline is connected with the water suction pump and the third check valve, and the water suction pump is positioned in front of the third check valve.
Further, the sensor comprises a liquid level sensor and a pressure sensor, wherein the liquid level sensor is respectively arranged on the side wall of the underground water collecting tank and the side wall of the outdoor sewage pit and is used for monitoring the liquid level; the pressure sensors are respectively arranged on the first pipeline, the second pipeline and the third pipeline and are used for monitoring the internal pressure of the pipelines.
Further, the device switch comprises a submersible pump switch and a water pump switch, and comprises a manual working mode and an automatic working mode.
Further, the underground water collecting tank is positioned below the ground of the underground building, the top of the underground water collecting tank is flush with the ground of the underground building, a cover plate is arranged at the top of the underground water collecting tank, and one side wall of the underground water collecting tank is communicated with a sewage pipe below the ground of the underground building and used for collecting and storing sewage of the underground building.
Further, the outdoor sump is located below the outdoor ground, the top of the outdoor sump is flush with the outdoor ground, a cover plate is arranged on the top of the outdoor sump, and the bottom of the outdoor sump is lower than the bottom of the underground water collecting tank.
Further, the first, second and third conduits have inlets higher than an outlet position.
Further, an emergency drainage method for an underground building is characterized by comprising the steps of,
step s01, collecting and storing underground construction sewage by the underground water collecting tank, when the water level in the underground water collecting tank reaches the position of the inlet of the first pipeline, enabling the sewage to flow out from the inlet of the first pipeline, pass through the first check valve, flow to the outlet of the first pipeline, and be discharged into the outdoor sewage pit;
step s02, when the water level in the outdoor sewage pit reaches the first liquid level, the first check valve is closed, the pressure sensor detects that the internal pressure of the first pipeline reaches the critical pressure for closing the first pipeline, the control module opens the submersible pump switch, and underground building sewage in the underground water collecting pit flows to the second pipeline inlet along the vertical pipeline, flows to the second pipeline outlet after passing through the second check valve, and is discharged into the outdoor sewage pit;
step s03, when the water level in the underground water collecting tank reaches a high water level critical value, the control module judges that the water storage amount in the underground water collecting tank is too large, the control module starts the water suction pump switch, underground construction sewage in the underground water collecting tank flows to the inlet of the third pipeline along the vertical pipeline, flows to the outlet of the third pipeline after passing through the water suction pump and the second check valve, and is discharged into the outdoor sewage pit; the second check valve is closed when the third conduit internal pressure is greater than the second conduit internal pressure;
step s04, when the water level in the underground water collecting tank is reduced to a low water level critical value, the control module judges that the water storage amount in the underground water collecting tank is small, and the control module turns off the water suction pump switch; when the water level in the outdoor sewage pit is greater than or equal to the first liquid level, underground building sewage in the underground water collecting pit flows to the second pipeline inlet along the vertical pipeline, flows to the second pipeline outlet after passing through the second check valve, and is discharged into the outdoor sewage pit; when the water level in the outdoor sewage pit is smaller than the first liquid level, the control module closes the submersible pump switch, sewage flows out from the first pipeline inlet, flows to the first pipeline outlet after passing through the first check valve, and is discharged into the outdoor sewage pit.
Compared with the prior art, the invention has the beneficial effects that,
1. by monitoring the actual drainage volume of the underground building and automatically switching the mode of the drainage pipeline, the energy-saving high-efficiency emergency drainage effect can be realized: when the water level of the underground water collecting tank is higher than the water level of the outdoor sewage pit and lower than the high water level critical value in the water collecting tank, selecting a first pipeline for draining, wherein the pipeline for draining does not need additional pressure equipment and electric energy, and draining to the outdoor sewage pit by utilizing the action of gravity; when the water level in the underground water collecting tank is lower than the water level of the outdoor sewage pit, starting a submersible pump to perform pressure drainage, and selecting a second pipeline to drain to the outdoor sewage pit; when the water level in the underground water collecting tank reaches a high water level critical value, a water suction pump is started to perform pressure drainage, and a third pipeline is selected to drain to an outdoor sewage pit.
2. The water draining pipelines are provided with check valves, and the inlet of the horizontal water draining pipeline is higher than the outlet; when one of the drainage pipelines works, the check valves of the other two drainage pipelines are automatically closed, so that outdoor sewage is prevented from flowing backwards.
3. The working state of each part of the drainage system is monitored and controlled through the control module, the pressure equipment is automatically opened and closed, and the intelligent emergency drainage effect can be realized.
Drawings
FIG. 1 is a schematic view of an emergency drainage system for an underground building according to the present invention;
1. submersible pump; 2. a water pump; 3. a first check valve; 4. a second check valve; 5. a third check valve; 6. a first drain pipe; 7. a second drain pipe; 8. third drainage pipeline
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
The invention provides an emergency drainage system for an underground building, referring to FIG. 1, the emergency drainage system can be implemented in the following way: the system comprises a pipeline unit, an equipment unit and a control unit, wherein,
the pipeline unit comprises a first pipeline, a second pipeline and a third pipeline, is connected with the equipment unit and is used for draining accumulated water in the underground water collecting tank;
the equipment unit comprises a submersible pump, a water suction pump, a first check valve, a second check valve and a third check valve; the submerged pump is arranged at the bottom of the underground water collecting tank, and the water outlet of the submerged pump is connected with the inlet of the vertical pipeline on the side wall of the underground building and is used for draining the accumulated water pressure in the underground water collecting tank; the water suction pump is connected with the third pipeline and is used for emergently draining accumulated water in the underground water collecting tank;
the control unit comprises a central control module, a device switch and a sensor, wherein the central control module is in communication connection with the device switch and the sensor and is used for monitoring and controlling the working states of all the components.
Specifically, the inlet of the first pipeline is positioned at the bottom of the side wall of the underground water collecting tank, the outlet of the first pipeline is connected to the outdoor sump and positioned at a first liquid level of the outdoor sump, and the first pipeline is connected with the first check valve; the inlet of the second pipeline is positioned below the outdoor ground, the outlet of the second pipeline is connected to the outdoor sump and positioned at a second liquid level of the outdoor sump, and the second pipeline is connected with the second check valve; the third pipeline is positioned above the outdoor ground, the inlet of the third pipeline is connected with the inlet of the second pipeline, the outlet of the third pipeline is connected to the outdoor sump and is positioned at the second liquid level of the outdoor sump, the third pipeline is connected with the water suction pump and the third check valve, and the water suction pump is positioned in front of the third check valve.
Specifically, the sensor comprises a liquid level sensor and a pressure sensor, wherein the liquid level sensor is respectively arranged on the side wall of the underground water collecting tank and the side wall of the outdoor sewage pit and is used for monitoring the liquid level; the pressure sensors are respectively arranged on the first pipeline, the second pipeline and the third pipeline and are used for monitoring the internal pressure of the pipelines.
Specifically, the device switch comprises a submersible pump switch and a water pump switch, and comprises a manual working mode and an automatic working mode.
Specifically, the underground water collecting tank is positioned below the ground of the underground building, the top of the underground water collecting tank is flush with the ground of the underground building, a cover plate is arranged at the top of the underground water collecting tank, and one side wall of the underground water collecting tank is communicated with a sewage pipe below the ground of the underground building and used for collecting and storing sewage of the underground building.
Specifically, the outdoor sump is located below the outdoor ground, the top of the outdoor sump is flush with the outdoor ground, the top of the outdoor sump is provided with a cover plate, and the bottom of the outdoor sump is lower than the bottom of the underground water collecting tank.
In particular, the first, second and third conduits have inlets higher than the outlet position.
Specifically, the invention provides an emergency drainage method for an underground building, which is characterized by comprising the following steps of,
step s01, collecting and storing underground construction sewage by the underground water collecting tank, when the water level in the underground water collecting tank reaches the position of the inlet of the first pipeline, enabling the sewage to flow out from the inlet of the first pipeline, pass through the first check valve, flow to the outlet of the first pipeline, and be discharged into the outdoor sewage pit;
step s02, when the water level in the outdoor sewage pit reaches the first liquid level, the first check valve is closed, the pressure sensor detects that the internal pressure of the first pipeline reaches the critical pressure for closing the first pipeline, the control module opens the submersible pump switch, and underground building sewage in the underground water collecting pit flows to the second pipeline inlet along the vertical pipeline, flows to the second pipeline outlet after passing through the second check valve, and is discharged into the outdoor sewage pit;
step s03, when the water level in the underground water collecting tank reaches a high water level critical value, the control module judges that the water storage amount in the underground water collecting tank is too large, the control module starts the water suction pump switch, underground construction sewage in the underground water collecting tank flows to the inlet of the third pipeline along the vertical pipeline, flows to the outlet of the third pipeline after passing through the water suction pump and the second check valve, and is discharged into the outdoor sewage pit; the second check valve is closed when the third conduit internal pressure is greater than the second conduit internal pressure;
step s04, when the water level in the underground water collecting tank is reduced to a low water level critical value, the control module judges that the water storage amount in the underground water collecting tank is small, and the control module turns off the water suction pump switch; when the water level in the outdoor sewage pit is greater than or equal to the first liquid level, underground building sewage in the underground water collecting pit flows to the second pipeline inlet along the vertical pipeline, flows to the second pipeline outlet after passing through the second check valve, and is discharged into the outdoor sewage pit; when the water level in the outdoor sewage pit is smaller than the first liquid level, the control module closes the submersible pump switch, sewage flows out from the first pipeline inlet, flows to the first pipeline outlet after passing through the first check valve, and is discharged into the outdoor sewage pit.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. An emergency drainage method for an underground building is characterized by comprising a pipeline unit, an equipment unit and a control unit, wherein,
the pipeline unit comprises a first pipeline, a second pipeline and a third pipeline, is connected with the equipment unit and is used for draining accumulated water in the underground water collecting tank;
the equipment unit comprises a submersible pump, a water suction pump, a first check valve, a second check valve and a third check valve; the submerged pump is arranged at the bottom of the underground water collecting tank, and the water outlet of the submerged pump is connected with the inlet of the vertical pipeline on the side wall of the underground building and is used for draining the accumulated water pressure in the underground water collecting tank; the water suction pump is connected with the third pipeline and is used for emergently draining accumulated water in the underground water collecting tank;
the inlet of the first pipeline is positioned at the bottom of the side wall of the underground water collecting tank, the outlet of the first pipeline is connected to an outdoor sewage pit and positioned at a first liquid level of the outdoor sewage pit, and the first pipeline is connected with the first check valve; the inlet of the second pipeline is positioned below the outdoor ground, the outlet of the second pipeline is connected to the outdoor sump and positioned at a second liquid level of the outdoor sump, and the second pipeline is connected with the second check valve; the third pipeline is positioned above the outdoor ground, the inlet of the third pipeline is connected with the inlet of the second pipeline, the outlet of the third pipeline is connected to the outdoor sewage pit and positioned at the second liquid level of the outdoor sewage pit, the third pipeline is connected with the water suction pump and the third check valve, and the water suction pump is positioned in front of the third check valve;
the sensor comprises a liquid level sensor and a pressure sensor, wherein the liquid level sensor is respectively arranged on the side wall of the underground water collecting tank and the side wall of the outdoor sewage pit and is used for monitoring the liquid level; the pressure sensors are respectively arranged on the first pipeline, the second pipeline and the third pipeline and are used for monitoring the internal pressure of the pipelines; the equipment switch comprises a submersible pump switch and a water suction pump switch, and comprises a manual working mode and an automatic working mode;
the underground water collecting tank is positioned below the ground of the underground building, the top of the underground water collecting tank is flush with the ground of the underground building, the top of the underground water collecting tank is provided with a cover plate, and one side wall of the underground water collecting tank is communicated with a sewage pipe below the ground of the underground building and is used for collecting and storing sewage of the underground building;
the outdoor sewage pit is positioned below the outdoor ground, the top of the outdoor sewage pit is flush with the outdoor ground, the top of the outdoor sewage pit is provided with a cover plate, and the bottom of the outdoor sewage pit is lower than the bottom of the underground water collecting tank;
the first, second and third conduits having inlets higher than an outlet position;
the control unit comprises a central control module, an equipment switch and a sensor, wherein the central control module is in communication connection with the equipment switch and the sensor and is used for monitoring and controlling the working states of all the components;
step s01, collecting and storing underground construction sewage by the underground water collecting tank, when the water level in the underground water collecting tank reaches the position of the inlet of the first pipeline, enabling the sewage to flow out from the inlet of the first pipeline, pass through the first check valve, flow to the outlet of the first pipeline, and be discharged into the outdoor sewage pit;
step s02, when the water level in the outdoor sewage pit reaches the first liquid level, the first check valve is closed, the pressure sensor detects that the internal pressure of the first pipeline reaches the critical pressure for closing the first pipeline, the central control module opens the submersible pump switch, and underground building sewage in the underground water collecting pit flows to the second pipeline inlet along the vertical pipeline, flows to the second pipeline outlet after passing through the second check valve, and is discharged into the outdoor sewage pit;
step s03, when the water level in the underground water collecting tank reaches a high water level critical value, the central control module judges that the water storage amount in the underground water collecting tank is too large, the central control module starts the water suction pump switch, underground construction sewage in the underground water collecting tank flows to the inlet of the third pipeline along the vertical pipeline, flows to the outlet of the third pipeline after passing through the water suction pump and the third check valve, and is discharged into the outdoor sewage pit; the second check valve is closed when the third conduit internal pressure is greater than the second conduit internal pressure;
step s04, when the water level in the underground water collecting tank is reduced to a low water level critical value, the central control module judges that the water storage amount in the underground water collecting tank is small, and the central control module turns off the water suction pump switch; when the water level in the outdoor sewage pit is greater than or equal to the first liquid level, underground building sewage in the underground water collecting pit flows to the second pipeline inlet along the vertical pipeline, flows to the second pipeline outlet after passing through the second check valve, and is discharged into the outdoor sewage pit; when the water level in the outdoor sewage pit is smaller than the first liquid level, the central control module closes the submersible pump switch, sewage flows out from the first pipeline inlet, flows to the first pipeline outlet after passing through the first check valve, and is discharged into the outdoor sewage pit.
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