CN218439714U

CN218439714U - Water pump anti-blocking device

Info

Publication number: CN218439714U
Application number: CN202222393607.3U
Authority: CN
Inventors: 唐伟超; 冯亮; 汤青山
Original assignee: Shanghai Rail Transit Engineering Co Ltd of China Railway 17th Bureau Group Co Ltd
Current assignee: Shanghai Rail Transit Engineering Co Ltd of China Railway 17th Bureau Group Co Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-02-03
Anticipated expiration: 2032-09-09

Abstract

The utility model relates to the technical field of foundation pit drainage, and discloses a water pump anti-blocking device, which comprises a connecting pipe, wherein the top end of the connecting pipe is connected with a precipitation well water pipe, the bottom of the connecting pipe is provided with a flange plate which is connected with a water pump through a water pump joint, and the water inlet of the water pump faces downwards; the connecting pipe middle part is opened there are a plurality of anti-punching holes, and equal fixedly connected with back-flushing pipe on every anti-punching hole, installs the valve on every back-flushing pipe respectively, and the back-flushing pipe is arranged around the water pump, and the back-flushing pipe mouth of pipe is down, and the back-flushing pipe mouth of pipe is less than the water pump water inlet. The utility model provides a water pump anti-clogging device effectively utilizes current device to mix the silt of foundation ditch bottom, prevents to bury the water pump at the in-process silt that draws water, and then leads to silt to concentrate into the water pump, causes the water pump to block up, effectively solve the easy problem of long-pending sand of current water pump, long-pending mud jam and forced shut down, the drawback of influence construction precipitation of stopping using of water pump of having avoided traditional well-flushing to cause is made the automatic silt sand in the clearance well of precipitation well, and is suitable for being generalized to use.

Description

Water pump anti-blocking device

Technical Field

The utility model relates to a foundation ditch drainage technology field specifically is a water pump anti-clogging device.

Background

In the construction process of a building, in order to ensure the waterless operation of a foundation pit, the earth excavation and the smooth implementation of the main structure construction, precipitation pumping drainage needs to be carried out before the foundation pit is excavated, and the stability and the safety of a foundation pit enclosure structure are ensured. However, in the long-term drainage process of the dewatering well, the accumulated sand and the accumulated mud often cause the water pump to lose water. At present, although a sewage pump has the functions of conveying sewage and primarily treating impurities in a water body, the sewage pump is easy to block silt in a foundation pit, a water pump needs to be put forward to wash a well again in the traditional treatment method, but in the actual production process, the well washing needs to be stopped, the underground water level is increased in the process, the risks of increasing the pressure inside a supporting structure and deformation displacement of the foundation pit are caused, and meanwhile, a large amount of time is delayed, and the project progress is delayed. Therefore, the blockage prevention and control of the water pump are very important, and in order to solve the problems, the existing water pump blockage prevention device needs to be improved.

Disclosure of Invention

The utility model discloses a solve present long-pending sand, long-pending mud and lead to the water pump to block up, need propose the water pump and wash the well again, at this in-process ground water level rise, produce great pressure to supporting construction, hinder a large amount of time limit for a project simultaneously, in order to ensure to draw water the in-process for a long time, the water pump is not buried by the silt and causes the water pump to block up, has provided a water pump anti-clogging device.

The utility model discloses a following technical scheme realizes:

a water pump anti-clogging device is characterized in that the top end of a connecting pipe is connected with a dewatering well water pipe, the bottom of the connecting pipe is provided with a flange plate which is connected with a water pump through a water pump connector, and the water inlet of the water pump faces downwards; the connecting pipe middle part is opened there are a plurality of anti-punching holes, and equal fixedly connected with back-flushing pipe on every anti-punching hole installs the valve on every back-flushing pipe respectively, and the back-flushing pipe is arranged around the water pump, and the back-flushing pipe mouth of pipe is downward, and the back-flushing pipe mouth of pipe is less than the water pump water inlet.

When the device is implemented, the top end of the connecting pipe is connected with a dewatering well water pipe through a flange, the bottom of the connecting pipe is provided with a flange plate which is connected with a water pump through a water pump connector, so that the device can be quickly installed and quickly disassembled, the connecting pipes with different specifications are replaced according to different field conditions, and the water inlet of the water pump faces downwards; the middle part of the connecting pipe is provided with a plurality of back-flushing holes, the number of the back-flushing holes is uniformly distributed according to the conditions of sand accumulation and mud accumulation on site, the back-flushing holes are positioned at the same horizontal height, and each back-flushing hole is fixedly connected with a back-flushing pipe; as a mode, the number of the backflushing holes is 3, the backflushing holes are uniformly distributed at intervals of 120 degrees, and the backflushing pipe structures are completely consistent; as another mode, the number of the back-flushing holes is 6, the back-flushing pipes are uniformly arranged at 60-degree included angles, the back-flushing pipes are divided into two groups according to the length, and the long back-flushing pipes and the short back-flushing pipes are alternately arranged in the back-flushing holes, namely, 3 long back-flushing pipes and 3 short back-flushing pipes are arranged at intervals; install the valve on every back flush pipe respectively, every valve independent control back flush pipe opens and shuts, can open a certain valve alone according to the site conditions, recoil to the local area, also can all open the recoil, fully homogenize the long-pending sand, long-pending mud, the back flush pipe is arranged around the water pump, the back flush pipe mouth of pipe is downward, the back flush pipe mouth of pipe is less than the water pump water inlet, the back flush pipe mouth of pipe can be dismantled and be connected with the elbow, be connected with flat mouth shower nozzle on the elbow, flat mouth shower nozzle is loudspeaker form flat mouth, the nozzle water cross section of flat mouth shower nozzle is the rectangle, realize spraying of big face, increase spray pressure, the nozzle of flat mouth shower nozzle all faces water pump direction. When the anti-blocking device is used, according to the conditions of sand and mud accumulation on site, connecting pipes with 6 back-punched holes or 3 back-punched holes are selected, connecting pipes with other specifications can be selected to be connected with the top of the connecting pipe at the bottom of a water pipe of the dewatering well, the bottom of the connecting pipe is connected with a water pump through a water pump connector by an installation flange plate, all valves on the back-flushing pipe are closed, the anti-blocking device of the water pump is kept below the water surface, the water pump is opened until the water pump initially runs normally, a valve on the back-flushing pipe is opened, water in a foundation pit enters through a water inlet of the water pump, enters the connecting pipe through the water pump, after the water is lifted to the height of a back-flushing hole, part of water enters the back-flushing pipe, flows downwards to a flat nozzle sprayer through the valve, and is ejected out through a nozzle of the flat nozzle sprayer (the pressure of water spraying can be properly increased by the design of the flat nozzle), the sand and the accumulated mud and the mud in the foundation pit are dispersed, so that the mud around the water pump is suspended in the water and mixed into turbid liquid, the water is pumped out of the dewatering well by the dewatering well, the amount and the amount of the extracted water and the silt degree of the anti-flushing pipe are observed, and the opening size and the opening degree of the valve on the back-flushing pipe are adjusted at any time.

Compared with the prior art, the invention has the following beneficial effects: the utility model provides a water pump anti-clogging device effectively utilizes current device to mix the silt of foundation ditch bottom, prevents to bury the water pump at the in-process silt sand that draws water, and then leads to silt to concentrate into the water pump, causes the water pump to block up, has effectively solved the easy problem of being stopped by long-pending sand, long-pending mud jam and compelled of current water pump. The utility model can be realized without abandoning the prior device, has simple structure and easy operation, and can be completed in the process of lowering the well casing; the water yield and the sand yield of the dewatering well are controlled by switching the back flushing pipe valve, so that the normal operation of the water pump is ensured under the condition that the drainage quantity of the dewatering well is not reduced; the defect that the water pump is stopped to stop to influence construction precipitation caused by traditional well washing is avoided, and the precipitation well can automatically clean sand in the well.

Drawings

Fig. 1 shows a schematic perspective view of embodiment 1 of the present invention.

Fig. 2 shows a schematic perspective view of embodiment 2 of the present invention.

Fig. 3 is a plan view of embodiment 1 of the present invention.

In the figure: 1-connecting pipe, 2-dewatering well water pipe, 3-flange plate, 4-water pump, 5-back punching, 6-back punching pipe, 601-long back punching pipe, 602-short back punching pipe, 7-valve, 8-elbow, 9-flat nozzle spray head and 10-water pump joint.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Example 1

A water pump anti-blocking device is shown in figure 1: the length of the connecting pipe 1 is 1.5m, the top end of the connecting pipe 1 is connected with a dewatering well water pipe 2 through a flange, the bottom of the connecting pipe 1 is provided with a flange 3 which is connected with a water pump 4 through a water pump connector 10, the quick assembly and disassembly can be realized, the connecting pipes 1 with different specifications can be conveniently replaced according to different field conditions, and the water inlet of the water pump 4 is downward; the middle part of the connecting pipe 1 is provided with a plurality of back-punched holes 5, the aperture of each back-punched hole 5 is 20mm, the number of the back-punched holes 5 is uniformly distributed according to the conditions of sand accumulation and mud accumulation on site, the back-punched holes 5 are positioned at the same horizontal height, and each back-punched hole 5 is welded with a back-punched pipe 6 with the inner tube diameter of 20 mm; as shown in fig. 2: the number of the back punching holes 5 is 3, the back punching holes are uniformly arranged at intervals of 120 degrees, and the structures of the back punching pipes 6 are completely consistent; install valve 7 on every back-flushing pipe 6 respectively, 6 the opening and shutting of every valve 7 independent control back-flushing pipe, can open a certain valve alone according to the site conditions, recoil to local area, also can all open valve 7 and recoil, fully stir long-pending sand, long-pending mud, back-flushing pipe 6 arranges around water pump 4, the 6 mouth of pipe of back-flushing pipe is downward, the 6 mouth of pipe of back-flushing pipe is less than the water inlet of water pump 4, fully stir the silt of water inlet department, the 6 mouth of pipe of back-flushing pipe can be dismantled and be connected with elbow 8, be connected with flat mouth shower nozzle 9 on the elbow 8, flat mouth shower nozzle 9 is loudspeaker form flat mouth, the nozzle water section of flat mouth shower nozzle 9 is the rectangle, realize the spraying of big face, increase spray pressure, the nozzle of flat mouth shower nozzle 9 all faces 4 directions of water pump.

When the device is used, the bottom of the dewatering well water pipe 2 is connected with the top of the connecting pipe 1, the bottom of the connecting pipe 1 is connected with the water pump 4 through the water pump connector 10 by the mounting flange 3, all valves 7 on the backflushing pipe 6 are closed, the water pump anti-blocking device is kept below the water surface, and the device connection is completed; the water pump 4 is opened, when the water pump 4 initially runs normally, the valve 7 on the back flushing pipe 6 is opened, water in the foundation pit enters through the water inlet of the water pump 4, enters the connecting pipe 1 through the water pump 4, after the water rises to the height of the back flushing hole 5, part of the water enters the back flushing pipe 6, flows downwards to the flat nozzle sprayer 9 through the valve 7 and is ejected out through the nozzle of the flat nozzle sprayer 9, the pressure of the water spray can be properly increased through the design of the flat nozzle, accumulated sand and accumulated mud in the foundation pit are stirred, mud and sand around the water pump 4 are dispersed to be suspended in the water and mixed with the water into turbid liquid, the precipitation well is pumped out through the water pump 4, the pumped water quantity and the accumulated silt degree are observed, and the opening and closing size and the opening amount of the valve 7 on the back flushing pipe 6 are adjusted at any time.

Example 2

According to the water pump anti-blocking device, the number of back-punched holes 5 is 6, the back-punched holes are uniformly arranged at 60-degree included angles, the back-punched holes 6 are divided into two groups according to the length, the back-punched holes 5 are alternately provided with long back-punched pipes 601 and short back-punched pipes 602, namely, the 3 long back-punched pipes 601 and the 3 short back-punched pipes 602 are arranged at intervals and used for stirring silt in layers with different heights; the elbow 8 connected to the long back flushing pipe 601 is a 45-degree elbow and is used for washing deeper silt more powerfully and preventing the whole deep silt from falling off to block the water pump 4; the other structures were the same as those in example 1.

When the device is used, according to the step connection device in the embodiment 1, the water pump 4 is opened, after the water pump 4 is initially normally operated, water in a foundation pit enters through a water inlet of the water pump 4, enters the connecting pipe 1 through the water pump 4, rises to the height of the backflushing hole 5, the valve 7 on the long backflushing pipe 601 is opened, part of the water enters the long backflushing pipe 601, flows downwards through the valve 7, passes through the 45-degree elbow to the flat nozzle spray head 9, and is obliquely and downwards ejected out from the nozzle of the flat nozzle spray head 9, silt in the deep layer of the foundation pit is stirred, then the valve 7 on the short backflushing pipe 602 is opened, large silt in the deep layer is further dispersed, accumulated sand and accumulated mud in the foundation pit are fully stirred, silt around the water pump 4 is dispersed, the water well is suspended in the water and mixed with the water, turbid liquid is pumped out through the water pump 4 to be lowered, the pumped water volume and accumulated silt degree are observed, and the opening and closing size and opening amount of the valve 7 on different backflushing pipes 6 are adjusted at any time.

The scope of the invention is not limited to the above embodiments, and various modifications and changes can be made by those skilled in the art, and any modifications, improvements and equivalents made within the spirit and principle of the invention are intended to be included within the scope of the invention.

Claims

1. The water pump anti-clogging device is characterized in that: the device comprises a connecting pipe (1), wherein the top end of the connecting pipe (1) is connected with a dewatering well water pipe (2), the bottom of the connecting pipe (1) is provided with a flange plate (3), the flange plate is connected with a water pump (4) through a water pump joint (10), and a water inlet of the water pump (4) faces downwards; the connecting pipe is characterized in that a plurality of back-flushing holes (5) are formed in the middle of the connecting pipe (1), each back-flushing hole (5) is fixedly connected with a back-flushing pipe (6), each back-flushing pipe (6) is provided with a valve (7), all the back-flushing pipes (6) are arranged around the water pump (4), the pipe orifices of the back-flushing pipes (6) are downward, and the pipe orifices of the back-flushing pipes (6) are lower than the water inlet of the water pump (4).

2. The anti-clogging device for a water pump as claimed in claim 1, wherein: the pipe orifice of the back flushing pipe (6) is detachably connected with an elbow (8), a flat nozzle spray head (9) is connected onto the elbow (8), and nozzles of the flat nozzle spray head (9) face the water pump direction.

3. The anti-clogging device for a water pump as claimed in claim 2, wherein: the water flowing section of the nozzle of the flat nozzle spray head (9) is rectangular.

4. The water pump anti-clogging device of claim 1, characterized in that: the number of the reverse punched holes (5) is 3, and the reverse punched holes are uniformly arranged at intervals of 120 degrees.

5. The water pump anti-clogging device of claim 1, characterized in that: the number of the reverse punched holes (5) is 6, and the reverse punched holes are uniformly arranged at intervals of 60 degrees.

6. The anti-clogging device for a water pump as claimed in claim 5, wherein: the back flushing pipes (6) are divided into two groups according to the length, and the back flushing holes (5) are alternately provided with long back flushing pipes (601) and short back flushing pipes (602).

7. The water pump anti-clogging device as claimed in any one of claims 4 to 6, characterized in that: the reverse punched holes (5) are positioned at the same horizontal height.

8. The water pump anti-clogging device of claim 1, characterized in that: the length of the connecting pipe (1) is 1.5m, and the inner diameter of the back flushing pipe (6) is 20mm.