Simple pontoon type drainage device
The floating boat-style drainage system addresses the limitations of fixed-type centrifugal pumps by maintaining intake below water level, enhancing efficiency and safety while reducing maintenance costs.
Patent Information
- Application Number
- CN202422191785.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-07
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-07
AI Technical Summary
In the prior art, in the extraction and drainage of foundation pits, there are problems such as limited water suction elevation of fixed centrifugal pumps, repeated extension of pipelines, high labor costs, poor water level adaptability and risk of centrifugal pump submersion, especially in large foundation pits and large drainage situations, which are inefficient and unsafe.
A simple floating boat drainage device is used to install the centrifugal pump on the floating boat, connected to the bank slope through a traction rope, and the water suction port of the water inlet pipe changes with the rise and fall of the water level, ensuring that it is always below the water surface, and a hose is used to connect the main drainage pipe on the bank slope to achieve flexible adaptation to water level changes.
It improves drainage efficiency, reduces operating and maintenance costs, enhances water level adaptability, avoids the risk of centrifugal pump flooding, and ensures the continuity and safety of construction.
Smart Images
Figure CN223100966U_ABST
Abstract
Description
Technical Field:
[0001] The utility model belongs to the technical fields of water conservancy and hydropower engineering and port and waterway engineering construction, and particularly relates to foundation pit pumping drainage. Specifically, it is a simple floating ship type drainage device. Background Art:
[0002] In the construction industries of water conservancy and hydropower engineering and port and waterway engineering, a large amount of pumping drainage in foundation pits is often encountered. The volume of pumped drainage is large, the drainage elevation is high, and the cycle is long. The existing technology generally uses a fixed installation method of fixed centrifugal pumps for large foundation pits and large amounts of drainage, and uses large-diameter steel pipes as drainage pipelines. However, there are the following problems: 1. The suction elevation of the fixed centrifugal pump is limited, and it is necessary to repeatedly extend the large-diameter steel pipe pipeline according to the water level elevation. During the pipeline extension period, the fixed centrifugal pump needs to be shut down and reinstalled, and the pumping efficiency is reduced at the same time; 2. It may not be possible to find a suitable bank slope platform for installing the fixed centrifugal pump during the excavation and movement of the foundation pit; 3. The operation and maintenance labor cost is high due to repeatedly extending the pipeline to adapt to the water surface elevation; 4. In case of a large rise in the foundation pit water level, there may be a risk of the centrifugal pump being flooded by water; 5. The adaptability to the water level is poor, and it cannot well adapt to the rise and fall of the water level. Submersible pumps are often not suitable for the pumping drainage construction of large-scale foundation pits. Content of the Utility Model:
[0003] The utility model provides a simple floating ship type drainage device according to the deficiencies of the existing technology, which greatly improves the drainage efficiency, reduces the operation and maintenance cost, and can flexibly adapt to the water level change.
[0004] In order to achieve the above object, the utility model adopts the following technical solutions:
[0005] The utility model provides a simple floating ship type drainage device, which includes a floating ship, a water pump, a pipeline, and a towing rope; the pipeline includes a water inlet pipe, a water delivery pipe, and a main bank slope drainage pipe; the floating ship includes a main floating ship frame and a floating ship platform. The floating ship platform is installed on the top surface of the main floating ship frame. The water pump is fixedly installed on the floating ship platform. The upstream and downstream ends of the water pump are respectively equipped with a water inlet pipe and a water delivery pipe. The water inlet pipe is fixed on the floating ship platform, and the water suction port of the water inlet pipe is submerged in water. The water outlet of the water delivery pipe is connected to the main bank slope drainage pipe, and the main bank slope drainage pipe is arranged on the bank slope / foundation pit slope; the floating ship is connected to the bank slope / foundation pit slope through a towing rope.
[0006] The main floating ship frame is formed by sealing empty oil drums and fixedly welding multiple empty oil drums into a whole through angle steel / square steel.
[0007] The water pump adopts a large-displacement drainage centrifugal pump, and the suction elevation of the centrifugal pump is 3 - 5m; the water pump is connected to the water inlet pipe and the water delivery pipe by flanges.
[0008] One end of the described water inlet pipe is connected to a water pump, and the other end's water suction port is lower than the water surface of the foundation pit drainage. The water suction port of the water inlet pipe is always lower than the floating ship and below the water level line; when the water level rises and falls, the water suction port of the water inlet pipe follows the floating ship and freely rises and falls, always ensuring that the water suction port is below the water surface, and the water suction port is submerged in the water by 3 to 5 m.
[0009] The described water inlet pipe is made of steel pipe, and the pipe diameter of the water inlet pipe matches the water pump.
[0010] One end of the described water delivery pipe is connected to the water pump, and the other end's water outlet is flange-connected to the main drainage pipe on the bank slope.
[0011] The described water delivery pipe is made of rubber hose, and the rubber hose is left with a surplus length.
[0012] The described main drainage pipe on the bank slope is made of large-diameter steel pipe.
[0013] The described floating ship can be adjusted according to the drainage needs. Multiple water pumps can be placed on the floating ship platform, or they can be configured separately.
[0014] The top of the described floating ship is provided with a rain shelter.
[0015] Compared with the prior art, the utility model has the following beneficial effects:
[0016] 1. The drainage efficiency of the utility model is high: The water delivery pipe at the rear end of the centrifugal pump of the utility model is connected to the drainage steel pipe on the bank slope by a hose. When using the utility model for foundation pit drainage construction, it greatly reduces the repeated extension / shortening of the drainage steel pipe on the bank slope with the change of the water level. There is no need to repeatedly stop the pump to extend the drainage steel pipe on the bank slope, resulting in the water pump waiting for shutdown. It greatly reduces the time for the water pump to stop and extend the drainage pipeline, reduces the extension frequency of the drainage pipeline, and greatly improves the drainage efficiency.
[0017] 2. The operation and maintenance cost of the utility model is low: By using the utility model, there is no need to repeatedly extend the drainage steel pipe on the bank slope, which greatly reduces the maintenance time and effectively reduces the operation and maintenance cost, solving the problem of high maintenance cost of the traditional drainage - fixed drainage scheme.
[0018] 3. The water level adaptability of the present utility model is high: The present utility model mainly aims at the situations of large foundation pits, a large amount of drainage, a large drainage elevation, and repeated drainage water levels. When the drainage water level in the dam foundation pit is repeated and the seepage volume suddenly increases due to the rapid rise of the river water level, the water level in the foundation pit may rise. The present utility model installs the centrifugal pump on a self-made simple floating boat, so that the fixed centrifugal pump is no longer fixedly installed, but freely rises and falls with the floating boat. When the water level rises and falls, the suction port of the water inlet pipe connected to the centrifugal pump freely rises and falls with the floating boat, always ensuring that the suction port is below the water surface. At the same time, it is connected to the steel pipe on the bank slope through a hose. Therefore, the present utility model adapts to the water level change by changing the installation method of the centrifugal pump. By using the present utility model, it can flexibly and fully meet the drainage requirements of the water level change in the foundation pit. The water level in the foundation pit can rise and fall, and normal pumping drainage can be carried out, and continuous pumping drainage can be carried out. When using the present utility model for foundation pit drainage construction, it can freely drain water with the rise and fall of the water level, solving the defect that the traditional drainage - fixed drainage scheme is not flexible enough for the rise and fall of the water level.
[0019] 4. The operation safety risk of the centrifugal pump of the present utility model is low: The present utility model installs the centrifugal pump on the floating boat, and the centrifugal pump freely rises and falls with the floating boat, and will not be submerged due to the rise of the water level in the foundation pit, and it is not easy to cause equipment damage, ensuring that there are no unsafe situations during the drainage process, solving the problem of the risk of the centrifugal pump being submerged and damaged due to the rise of the water level in the traditional drainage - fixed drainage scheme.
[0020] 5. The cost of the present utility model is low: The present utility model uses commonly used materials in engineering and waste grease / oil empty barrels, turning waste into treasure, and slightly increasing the processing cost of the floating boat to adapt to the elevation change of the foundation pit drainage.
[0021] 6. The present utility model installs the centrifugal pump on the floating boat, solving the problem that the dry - land installation of the centrifugal pump is not flexible enough.
[0022] In summary, the present utility model can adapt to the repeated rise and fall of the water level without stopping to extend / shorten the drainage pipeline. Compared with the traditional drainage scheme, it improves the drainage efficiency, reduces the maintenance cost of the pipeline for repeated extension / shortening, effectively ensures the safety of the centrifugal pump when the water level rises, and guarantees the construction progress. Brief Description of the Drawings:
[0023] Figure 1 It is the side view of the structure of the present utility model;
[0024] Figure 2 It is the top view of the structure of the present utility model.
[0025] Reference numerals in the drawings:
[0026] 1 - floating boat, 2 - water pump, 3 - water inlet pipe, 4 - water delivery pipe, 5 - main drainage pipe on the bank slope, 6 - towing rope, 7 - bank slope / foundation pit slope. Detailed implementation manners:
[0027] The present utility model will be further described below in conjunction with the detailed implementation manners. The detailed implementation manners are a further explanation of the principle of the present utility model, and do not limit the present utility model in any way. The same or similar technologies to the present utility model do not exceed the protection scope of the present utility model.
[0028] Refer to Figure 1 - Figure 2 , the present utility model provides a simple floating ship type drainage device, which includes a floating ship 1, a water pump 2, a pipeline, and a towing rope 6. The pipeline includes a water inlet pipe 3, a water delivery pipe 4, and a main bank slope drainage pipe 5.
[0029] The floating ship 1 includes a main floating ship frame and a floating ship platform. The main floating ship frame is formed by sealing used grease / lubricating oil empty barrels and fixing and welding multiple empty barrels into a whole through materials such as angle steel / square steel, forming a buoyancy structure of the floating ship 1 with sufficient buoyancy and stability. A floating ship platform is installed on the top surface of the main floating ship frame to carry a large-displacement water pump 2. The floating ship platform is made of steel plates or materials such as angle steel / square steel. The size of the floating ship 1 is determined according to the calculation of buoyancy and bearing capacity, and the number of empty barrels is determined by calculating the bearing capacity required for the floating ship platform.
[0030] The water pump 2 is configured with a water pump whose displacement meets the requirements according to the calculation of the foundation pit drainage volume, drainage time, and seepage volume. The water pump 2 is fixedly installed on the floating ship platform. The upstream and downstream ends of the water pump 2 are respectively configured with a water inlet pipe 3 and a water delivery pipe 4. The water pump 2 is connected to the water inlet pipe 3 and the water delivery pipe 4 by flanges. The water pump 2 uses a large-displacement drainage centrifugal pump, and the suction lift of the centrifugal pump is 3 - 5m.
[0031] The water inlet pipe 3 is fixed on the floating ship platform. One end of the water inlet pipe 3 is connected to the water pump 2, and the other end of the water inlet pipe 3 has a water suction port lower than the foundation pit drainage water surface. The water suction port of the water inlet pipe 3 is always lower than the floating ship 1 and below the water level line. When the water level rises and falls, the water suction port of the water inlet pipe 3 freely rises and falls with the floating ship 1, always ensuring that the water suction port is below the water surface. Generally, the water suction port is submerged in the water by 3 - 5m. The water inlet pipe 3 uses a steel pipe, and the diameter of the water inlet pipe 3 matches the water pump 2. One end of the water delivery pipe 4 is connected to the water pump 2, and the other end of the water delivery pipe 4 is connected to the main bank slope drainage pipe 5 by a flange, forming a complete drainage system. Multiple water delivery pipes 4 can be set. In this embodiment, four water delivery pipes 4 are set. The length of the water delivery pipe 4 is selected according to the foundation pit drainage depth to correspond to the length, avoiding extending the main bank slope drainage pipe 5 during the drainage process and at the same time avoiding waste caused by the water delivery pipe 4 being too long. The water delivery pipe 4 uses a rubber hose, and the rubber hose is left with a surplus length. When the water level rises and falls, the rubber hose can adapt to the water level rise and fall. The main bank slope drainage pipe 5 is arranged on the bank slope / foundation pit slope 7, and the main bank slope drainage pipe 5 uses a large-diameter steel pipe. The main bank slope drainage pipe 5 is adapted to the drainage capacity of the water pump 2 to avoid waste of materials and equipment operation due to non-adaptation to each other.
[0032] A towing rope 6 is added between the floating ship 1 and the bank slope / foundation pit slope 7. There are two symmetrically arranged towing ropes 6. One end of the towing rope 6 is connected to the rope buckle on the floating ship 1, and the other end is connected to the bank slope / foundation pit slope 7. The floating ship 1 is connected to the bank slope / foundation pit slope 7 through the towing rope 6, ensuring that the floating ship 1 will not float too far away from the bank slope / foundation pit slope 7. When overhauling, pulling the towing rope 6 can tow the floating ship 1 to the shore to facilitate personnel to board the floating ship for overhaul.
[0033] The floating ship 1 can be adjusted according to the drainage needs. Multiple water pumps 2 can be placed on the floating ship platform or configured separately; however, the buoyancy of the floating ship 1 should match the gravity of the heavy objects on the floating ship platform. A rain shelter can also be set on the top of the floating ship 1.
[0034] The floating ship type drainage device can determine the size of the floating ship 1 and the displacement of the water pump 2 according to the size of the foundation pit, the drainage volume, and the drainage depth as needed, ensuring that the floating ship 1 has sufficient bearing capacity, and matching the corresponding water inlet pipe 3, water delivery pipe 4, and the main drainage pipe 5 on the bank slope according to the drainage capacity of the water pump 2.
[0035] The usage method of the simple floating ship type drainage device is as follows:
[0036] Step 1: Configure the corresponding water pump 2 and pipes according to the size of the foundation pit, the drainage volume, and the drainage depth.
[0037] Step 2: Recheck the theoretical weight according to the equipment and materials configured in Step 1, calculate the buoyancy required for the floating ship 1, process the main frame of the floating ship and the floating ship platform, and strictly seal the waste oil drums.
[0038] Step 3: Hoist the floating ship into place, install the towing rope 6, water pump 2, and pipes. Connect the water delivery pipe 4 to the main drainage pipe 5 on the bank slope and supply power to the water pump 2.
[0039] Step 4: Operate the water pump 2.
[0040] Step 5: Pay attention to adjusting the position of the towing rope 6 according to the amount of water level drop.
Claims
1. A simple floating ship type drainage device, characterized in that: The device includes a floating ship (1), a water pump (2), pipelines, and a towing rope (6); the pipelines include a water inlet pipe (3), a water delivery pipe (4), and a main shore slope drain pipe (5); the floating ship (1) includes a main floating ship frame and a floating ship platform. The floating ship platform is installed on the top surface of the main floating ship frame. The water pump (2) is fixedly installed on the floating ship platform. The upstream and downstream ends of the water pump (2) are respectively configured with a water inlet pipe (3) and a water delivery pipe (4). The water inlet pipe (3) is fixed on the floating ship platform. The water suction port of the water inlet pipe (3) is submerged in water. The water outlet of the water delivery pipe (4) is connected to the main shore slope drain pipe (5). The main shore slope drain pipe (5) is arranged on the shore slope / foundation pit slope (7); the floating ship (1) is connected to the shore slope / foundation pit slope (7) through the towing rope (6).
2. The simple floating ship type drainage device according to claim 1, characterized in that: The main floating ship frame is formed by sealing empty oil drums and fixedly welding multiple empty oil drums into a whole through angle steel / square steel.
3. The simple floating ship type drainage device according to claim 1, characterized in that: The water pump (2) adopts a large-displacement drainage centrifugal pump, and the suction lift of the centrifugal pump is 3 - 5m; the water pump (2) is connected to the water inlet pipe (3) and the water delivery pipe (4) by flanges.
4. The simple floating ship type drainage device according to claim 1, characterized in that: One end of the water inlet pipe (3) is connected to the water pump (2), and the other end of the water suction port is lower than the water surface of the foundation pit drainage. The water suction port of the water inlet pipe (3) is always lower than the floating ship (1) and below the water level line; when the water level rises and falls, the water suction port of the water inlet pipe (3) freely rises and falls with the floating ship (1), always ensuring that the water suction port is below the water surface and the water suction port is submerged in water by 3 - 5m.
5. The simple floating ship type drainage device according to claim 1, characterized in that: The water inlet pipe (3) adopts a steel pipe, and the pipe diameter of the water inlet pipe (3) matches that of the water pump (2).
6. The simple floating ship type drainage device according to claim 1, characterized in that: One end of the water delivery pipe (4) is connected to the water pump (2), and the other end of the water outlet is connected to the main shore slope drain pipe (5) by a flange.
7. The simple floating ship type drainage device according to claim 1, characterized in that: The water delivery pipe (4) adopts a rubber hose, and the rubber hose is left with a surplus length.
8. The simple floating ship type drainage device according to claim 1, characterized in that: The main shore slope drain pipe (5) adopts a large-diameter steel pipe.
9. The simple floating ship type drainage device according to claim 1, characterized in that: The floating ship (1) can be adjusted according to the drainage needs. Multiple water pumps (2) can be placed on the floating ship platform, or they can be configured separately.
10. The simple floating ship type drainage device according to claim 1, characterized in that: A rain shelter is provided on the top of the floating ship (1).