CN113187025A - Integrated prefabricated pump station and construction method of assembled well plate open caisson - Google Patents

Abstract

The application relates to an integrated prefabricated pump station and an assembled well plate open caisson construction method, which relate to the field of pump stations, and comprise a barrel body with a cavity, wherein a water inlet communicated with the cavity is formed in the outer wall of the barrel body, and the integrated prefabricated pump station and the assembled well plate open caisson construction method are characterized in that: the inner wall of the cavity is connected with a basket type grating, a communication port matched with the water inlet is formed in the side face of one side of the basket type grating, the communication port is opposite to the water inlet, and the sewage enters from the water inlet and passes through the basket type grating to the bottom of the cavity. Sewage enters the cavity from the water inlet and then flows to the bottom of the cavity after being filtered by the basket type grating, so that the sewage submersible pump is used for treating the filtered sewage, and impurities with large volume in the sewage can be left in the basket type grating, so that the probability of blockage of the sewage submersible pump can be reduced.

Description

Integrated prefabricated pump station and construction method of assembled well plate open caisson

Technical Field

The application relates to the field of pump stations, in particular to an integrated prefabricated pump station and an assembled well plate open caisson construction method.

Background

The integrated prefabricated pump station is a power source for solving the problem of water resource allocation under the condition of no self-flow, such as sewage, industrial wastewater, rainwater, drinking water, irrigation and the like, and the pump station main body comprises a corrosion-resistant high-strength glass fiber reinforced plastic cylinder body, a special water pump, sewage interception equipment, an overhaul platform, a pipeline, a valve, a liquid level sensor and the like.

The invention patent with publication number CN111794314A discloses an integrated prefabricated pump station, which belongs to the field of pump stations and comprises a shell, wherein a workbench is arranged in the shell, a lifting device for lifting the workbench is arranged in the shell, and a locking mechanism for fixing the position of the workbench is also arranged in the shell.

The above-mentioned related technical solutions have the following drawbacks: after sewage mixes impurity entering prefabricated pump station of integration, sewage and impurity are direct inhales then arranges to next pipeline by stealthily dirty pump, because stealthily dirty pump can inhale the impurity volume of handling limited, can sneak into the great impurity of volume occasionally in the sewage, surpass stealthily dirty pump's throughput, block up the immersible pump easily, influence the behavior of integration pump station.

Disclosure of Invention

In order to reduce the probability that the submersible pump is blocked up in the integrated pump station, the application provides an integrated prefabricated pump station and an assembled well plate open caisson construction method.

The application provides an integrated prefabricated pump station and an assembled well plate open caisson construction method, which adopts the following technical scheme:

the integrated prefabricated pump station and the construction method of the assembled well plate open caisson comprise a barrel with a cavity, wherein a water inlet communicated with the cavity is formed in the outer wall of the barrel, and the integrated prefabricated pump station and the assembly type well plate open caisson construction method are characterized in that: the inner wall of the cavity is connected with a basket type grating, a communication port matched with the water inlet is formed in the side face of one side of the basket type grating, the communication port is opposite to the water inlet, and the sewage enters from the water inlet and passes through the basket type grating to the bottom of the cavity.

By adopting the technical scheme: sewage enters the cavity from the water inlet and then flows to the bottom of the cavity after being filtered by the basket type grating, so that the sewage submersible pump is used for treating the filtered sewage, and impurities with large volume in the sewage can be left in the basket type grating, so that the probability of blockage of the sewage submersible pump can be reduced.

Preferably, the water inlet device further comprises a first driving part, an opening is formed in the side face, away from the water inlet, of the basket type grid, a shielding grid is hinged to the side face, located at the opening, of the basket type grid, the first driving part drives the shielding grid to rotate, and the shielding grid is used for shielding the opening.

Through adopting above-mentioned technical scheme, after carrying basket formula grid and using a period, a certain amount of impurity can be piled up to inside, after carrying basket formula grid can't hold impurity again, need operating personnel to get into and use a drive to shelter from the grid orientation and keep away from basket formula grid one side rotation in the barrel, make the opening open, then take out impurity from the opening part again.

Preferably, the opening is located at the bottom of the basket type grating, the shielding grating is provided with two limiting gratings, and the two limiting gratings are located on two sides of the shielding grating respectively.

Through adopting above-mentioned technical scheme, when opening and sheltering from the grid, spacing grid shifts out along with sheltering from the grid, and spacing grid can play certain limiting displacement, reduces impurity at the in-process that drops from the opening part, drops to keeping away from and shelters from the grid, increases impurity along the probability that shelters from the grid roll and fall.

Preferably, the portable basket type grid water inlet device further comprises a second driving part, a workbench for people to stand is arranged in the cavity, the workbench divides the cavity into an upper cavity and a lower cavity, the water inlet is located in the lower cavity, the basket type grid is connected to the inner wall of the barrel in a sliding mode, the second driving part drives the basket type grid to slide to the upper cavity from the lower cavity, and a through groove for the basket type grid to pass through is formed in the workbench.

Through adopting above-mentioned technical scheme, operating personnel gets into the barrel after, stands on the workstation, then uses two drive lifting basket formula grids of driving piece to remove to the upper chamber, and operating personnel can stand and handle the impurity in the lifting basket formula grid, need not unsettled hanging again and handle the impurity in the lifting basket formula grid, can alleviate operating personnel's working strength.

Preferably, the driving part two includes a screw rod, a moving block, a motor and a connecting rod, the motor is arranged in the cylinder, the screw rod is coaxially arranged on an output shaft of the motor, the length direction of the screw rod is parallel to the moving direction of the basket type grating, the moving block is in threaded connection with the screw rod, the moving block is in sliding connection with the inner wall of the cylinder along the length direction parallel to the screw rod, and two ends of the connecting rod are respectively arranged on the moving block and the basket type grating.

Through adopting above-mentioned technical scheme, the output shaft through driving motor rotates, drives the lead screw and rotates, and the lead screw rotates the movable block that drives and lead screw threaded connection and rotates, and the movable block passes through the connecting rod and drives basket formula grid and remove.

Preferably, the driving part one comprises an air cylinder and an articulated rod, the air cylinder is arranged on the connecting rod, two ends of the articulated rod are respectively articulated on a piston rod of the air cylinder and on a side wall of the shielding grid, when the piston rod of the air cylinder contracts, the shielding grid is abutted against the basket type grid, and when the piston rod of the air cylinder extends out, an included angle between the shielding grid and the basket type grid is arranged in an obtuse angle mode.

Through adopting above-mentioned technical scheme, the piston rod through the cylinder is flexible controls two kinds of states that shelter from the grid, makes to shelter from the grid and rotates to sheltering from the opening or assist and empty two kinds of states.

Preferably, a storage battery is arranged in the cylinder and used for supplying power to the motor, a power generation impeller is rotatably connected to the inner wall of the cylinder and located below the basket type grating, the sewage flows out of the basket type grating to the power generation impeller to drive the power generation impeller to rotate, and the power generation impeller is used for converting the rotating mechanical energy into the electric energy of the storage battery.

Through adopting above-mentioned technical scheme, flow down through sewage rivers and erode the electricity generation impeller to drive the electricity generation impeller and rotate, be essentially with the potential energy conversion of water electric energy, realized the various utilization of energy.

Preferably, a water storage tank is arranged on the inner wall of the barrel body and located under the lifting basket type grating, a guide nozzle is arranged on the water storage tank, sewage flows into the water storage tank from the lifting basket type grating and then flows out of the guide nozzle, the power generation impeller is arranged close to the guide nozzle, and the sewage flowing out of the guide nozzle is used for driving the power generation impeller to rotate.

Through adopting above-mentioned technical scheme, the aqua storage tank can increase the washout time of sewage to the electricity generation impeller, and the rotation time of extension electricity generation impeller can make the more electric power supply battery of electricity generation impeller conversion, and the direction mouth can standardize the flow direction of rivers simultaneously, makes the better effect of rivers on the electricity generation impeller, can increase the slew velocity of electricity generation impeller to a certain extent, further makes the more electric power supply battery of electricity generation impeller conversion.

The application also discloses an integrated prefabricated pump station and an assembled well plate open caisson construction method, which comprises the following steps:

s1: selecting a construction address, digging a wellhead on a road surface, and then reinforcing the wellhead of the open caisson;

s2: digging soil of the open caisson by using an excavator lamp device, then sealing the bottom of the open caisson by using concrete, carrying out sewage pipe jacking construction at the bottom of the open caisson, and clearing slurry in the open caisson;

s3: and transporting the integrated prefabricated pump station to the wellhead, hoisting the integrated prefabricated pump station to the position right above the wellhead, and finally installing and debugging the integrated prefabricated pump station.

Through adopting above-mentioned technical scheme, through digging out the well head, consolidate the well head edge, then further dig deeply to the open caisson, use the concrete to carry out the back cover to the open caisson, put into the open caisson with the prefabricated pump station of integration at last again and carry out the installation and debugging, make the sewage pipe communicate the water inlet of the prefabricated pump station of integration, the sewage after advancing the processing is discharged from the prefabricated pump station of integration again.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the workbench, an operator stands on the workbench after entering the cylinder, then drives the basket type grating to move into the upper cavity by using the driving part II, and can stand to treat impurities in the basket type grating without hanging in the air, so that the working intensity of the operator can be reduced;

2. the two states of the shielding grating are controlled by setting the air cylinder and the hinged rod and extending and contracting the piston rod of the air cylinder, so that the shielding grating rotates to a shielding opening or assists in pouring;

3. through setting up electricity generation impeller and battery, erode the electricity generation impeller through sewage rivers flow down to drive the electricity generation impeller and rotate, be essentially with the potential energy conversion of water electric energy, realized the various utilization of energy.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

FIG. 2 is a schematic structural view of the basket-type grating of the present application when filtering sewage.

Fig. 3 is a schematic structural view of the basket-type grating for dumping impurities according to the embodiment of the present application.

FIG. 4 is a schematic view of the assembly of the basket-type grille and the shielding grille according to the embodiment of the present application.

Description of reference numerals: 1. a barrel; 11. a water inlet pipe; 111. a water inlet; 12. a water outlet pipe; 121. a water outlet; 13. a baffle plate; 131. an inlet port; 14. a submersible sewage pump; 141. a drain pipe; 15. a cavity; 151. an upper chamber; 152. a lower cavity; 16. a work table; 161. a temporary storage box; 162. climbing a ladder; 163. passing through the through groove; 17. a water storage tank; 171. a guide nozzle; 18. a power generation impeller; 2. a basket-type grid; 21. a communication port; 22. a shielding grid; 221. a limiting grid; 23. a driving part II; 231. a motor; 232. a moving block; 233. a connecting rod; 2331. a protective cover; 234. a lead screw; 24. a first driving part; 241. a cylinder; 242. an extension pole; 243. a hinged lever; 25. and (4) opening.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses prefabricated pump station of integration.

Referring to fig. 1 and 2, the integrated prefabricated pump station of the embodiment includes a cylinder 1 with a cavity 15, a water inlet 111 and a water outlet 121 are respectively formed in the outer wall of the cylinder 1, the water inlet 111 and the water outlet 121 are respectively located at two sides of the cylinder 1, a water inlet pipe 11 is fixed at the water inlet 111, and a water outlet pipe 12 is fixed at the water outlet 121.

Referring to fig. 2 and 3, a disc-shaped worktable 16 is fixedly connected in the cylinder 1, the worktable 16 is arranged near the middle position of the cylinder 1 in the height direction, the worktable 16 is horizontally arranged, the worktable 16 divides the cavity 15 into an upper cavity 151 and a lower cavity 152, and the upper cavity 151 is located above the lower cavity 152. A plurality of submersible sewage pumps 14 are fixed on the bottom wall in the lower cavity 152, the submersible sewage pumps 14 are positioned at the bottom of the lower cavity 152, a drain pipe 141 is communicated with the submersible sewage pumps 14, one end of the drain pipe 141 is communicated with the submersible sewage pumps 14, and the other end of the drain pipe 141 extends upwards to be communicated with the water outlet pipe 12.

The sewage flows into the lower cavity 152 from the water inlet pipe 11, the submersible sewage pump 14 operates to cut impurities in the sewage, then the sewage mixed with the cut impurities is discharged from the water outlet pipe 12 through the water outlet pipe 141.

Referring to fig. 3 and 4, the basket type grating 2 is connected to the inside of the cylinder 1 in a sliding manner along the vertical direction, a second driving member 23 is arranged in the cylinder 1, the second driving member 23 drives the basket type grating 2 to slide from the lower cavity 152 to the upper cavity 151, and a through groove 163 for allowing the basket type grating 2 to pass through is formed in the workbench 16. The side surface of the basket type grating 2 facing the water inlet 111 is provided with a communication port 21 matched with the water inlet 111, the communication port 21 is positioned at the upper end of the basket type grating 2, and when the basket type grating 2 slides to the state that the communication port 21 is right opposite to the water inlet 111, sewage enters from the water inlet 111 and flows to the bottom of the lower cavity 152 after being filtered by the basket type grating 2.

After sewage is filtered by the basket type grating 2, impurities with large volume in the sewage can be remained in the basket type grating 2, the impurities with small volume are mixed in the filtered sewage, and the impurities with small volume can not block the submersible sewage pump 14 in the treatment range of the submersible sewage pump 14.

Referring to fig. 3 and 4, the second driving member 23 includes two lead screws 234, two moving blocks 232, two motors 231 and two connecting rods 233, the two motors 231 are respectively and fixedly connected to the inner wall of the upper cavity 151, the two motors 231 are located on the same horizontal plane, output shafts of the motors 231 are vertically and downwardly arranged, the lead screws 234 are rotatably connected to the inner wall of the upper cavity 151, one ends of the lead screws 234 are coaxially fixed to the output shafts of the motors 231, the other ends of the lead screws 234 are close to the workbench 16, the two moving blocks 232 are in one-to-one correspondence with the two lead screws 234, the moving blocks 232 are in threaded connection with the corresponding lead screws 234, and the moving blocks 232 slide on the inner wall of the cylinder 1 along the vertical direction. One end of the connecting rod 233 is fixedly connected to the moving block 232, the other end of the connecting rod 233 is fixedly connected to the side wall of the basket type grating 2, the connecting rod 233 is vertically arranged, and the two connecting rods 233 are mutually just opposite to each other and are respectively located on the outer walls of two sides of the basket type grating 2 far away from the communicating opening 21.

The output shaft of the driving motor 231 rotates, the output shaft of the motor 231 drives the lead screw 234 to rotate, the lead screw 234 rotates to drive the moving block 232 which is in threaded connection with the lead screw 234 to slide along the inner wall of the cylinder 1, and the moving block 232 moves the basket type grating 2 along the inner wall of the cylinder 1 through the connecting rod 233.

Referring to fig. 3 and 4, an opening 25 for dumping impurities is provided on a side surface of the basket type grating 2 away from the communication port 21, the opening 25 is located at the bottom of the basket type grating 2, a shielding grating 22 is hinged to a side surface of the basket type grating 2 located at the opening 25, an articulated shaft of the shielding grating 22 and the basket type grating 2 is located below the opening 25, the shielding grating 22 and the articulated shaft of the basket type grating 2 are horizontally arranged and located at one end of the shielding grating 22 in the width direction, and the length direction of the articulated shaft of the shielding grating 22 and the basket type grating 2 is parallel to the length direction of the shielding grating 22. When the shielding grille 22 rotates upwards to abut against the side surface of the basket type grille 2 away from the communication opening 21, the shielding grille 22 shields the opening 25; when the shielding grille 22 is rotated downward to be away from the basket grille 2, the impurities accumulated inside the basket grille 2 may slip down from the opening 25.

Referring to fig. 3 and 4, the side walls of the two sides of the length direction of the shielding grille 22 are fixedly connected with limiting grilles 221, the limiting grilles 221 are perpendicular to the shielding grille 22, the limiting grilles 221 are located on one side of the shielding grille 22 facing the basket type grille 2, the two limiting grilles 221 are respectively located at two ends of the length direction of the shielding grille 22, and the limiting grilles 221 are in a quarter disc shape. When the shielding grille 22 rotates upwards to abut against the side surface of the basket type grille 2 far away from the communication opening 21, the two limiting grilles 221 are both positioned inside the basket type grille 2; when the shielding grille 22 rotates downwards to be far away from the basket type grille 2, the impurities slide from the opening 25 to the side face of one side of the shielding grille 22 facing the limiting grille 221, the two limiting grills 221 respectively play a limiting role, and the probability that the impurities drop everywhere is reduced.

Referring to fig. 2 and 4, the connecting rod 233 is provided with a first driving member 24, and the first driving member 24 is used for driving the rotation of the shielding grille 22. The first driving member 24 includes two air cylinders 241 and two hinge rods 243, the two air cylinders 241 correspond to the two connecting rods 233 one by one, and the two hinge rods 243 correspond to the two air cylinders 241 one by one. The cylinder 241 is fixedly connected to the side surface of the connecting rod 233 away from the basket type grating 2, a protecting cover 2331 for reducing the splashing of the cylinder 241 by sewage is fixed on the connecting rod 233, and the cylinder 241 is covered by the protecting cover 2331. The piston rod of the cylinder 241 is vertically downward arranged and coaxially and fixedly connected with an extension rod 242, two ends of a hinge rod 243 are respectively rotatably connected to the bottom end of the extension rod 242 and one side wall of the shielding grille 22 in the length direction, and the length direction of the rotation axis of the hinge rod 243, the extension rod 242 and the shielding grille 22 in the rotation connection is parallel to the length direction of the shielding grille 22. Referring to fig. 2 and 3, when the piston rod of the cylinder 241 is contracted, the shielding grille 22 abuts against the basket grille 2, and when the piston rod of the cylinder 241 is extended, an included angle between the shielding grille 22 and the basket grille 2 is set to be an obtuse angle.

The piston rod of the cylinder 241 contracts, and the hinged rod 243 moves upward away from one end of the shielding grille 22, so as to drive the shielding grille 22 to rotate upward to abut against the basket type grille 2, and at this time, the shielding grille 22 is in a state of shielding the opening 25. The piston rod of the cylinder 241 extends out to drive the hinged rod 243 to move downwards away from one end of the shielding grille 22, and the shielding grille 22 loses the pulling force of the hinged rod 243 and cannot be continuously abutted against the basket type grille 2, so that the shielding grille 22 rotates downwards to be arranged at an obtuse angle with the basket type grille 2. In the process that the shielding grille 22 rotates downwards, the limiting grille 221 is slowly far away from the basket type grille 2 in the rotating process, so that impurities can be firstly accumulated on the shielding grille 22, the limiting grille 221 plays a limiting role in limiting the impurities, and then the impurities are poured out from the shielding grille 22.

Referring to fig. 2 and 3, a temporary storage box 161 for temporarily storing impurities is fixedly connected to the top surface of the worktable 16, and when the basket type grating 2 moves to be located in the upper chamber 151, the piston rod of the driving cylinder 241 extends out to rotate the shielding grating 22 to an obtuse angle with the included angle between the shielding grating 22 and the basket type grating 2, at this time, the shielding grating 22 is located right above the temporary storage box 161, and the impurities in the basket type grating 2 are dumped in the temporary storage box 161.

Referring to fig. 2 and 3, an inlet 131 which is communicated with the cavity 15 and is used for an operator to enter the interior of the barrel 1 is formed in the top surface of the barrel 1, and a baffle 13 for shielding the inlet 131 is hinged to the top surface of the barrel 1. The upper cavity 151 is fixedly connected with a ladder stand 162, the upper end and the lower end of the ladder stand 162 are respectively positioned on the top wall of the upper cavity 151 and the top surface of the workbench 16, and the ladder stand 162 is arranged close to the access port 131.

The operator opens the baffle 13, goes into the upper chamber 151 along the ladder 162, and then climbs down to the worktable 16, so that the trash in the temporary storage box 161 can be cleaned.

Referring to fig. 2 and 3, a water storage tank 17 for storing water is fixedly connected to the inner wall of the lower cavity 152, the water storage tank 17 is located under the basket type grid 2, sewage flows into the water storage tank 17 after passing through the basket type grid 2, a guide nozzle 171 is arranged on the side surface of one side of the bottom of the water storage tank 17, which is far away from the water inlet 111, the guide nozzle 171 is arranged in a flat shape, the water in the water storage tank 17 can flow out from the guide nozzle 171, the guide nozzle 171 can supply impurities in the sewage to flow out, and the impurities cannot block the guide nozzle 171.

Referring to fig. 2 and 3, a storage battery is fixed in the cylinder 1 and used for supplying power to the motor 231, a power generation impeller 18 is rotatably connected to the inner wall of the cylinder 1, the power generation impeller 18 is positioned obliquely below the water storage tank 17, the power generation impeller 18 is positioned above the submersible sewage pump 14, the guide nozzle 171 is arranged right opposite to the power generation impeller 18, the length direction of the guide nozzle 171 is parallel to the axial direction of the rotation of the power generation impeller 18, sewage flowing out of the guide nozzle 171 washes the power generation impeller 18 to drive the power generation impeller 18 to rotate, and the power generation impeller 18 converts the rotating mechanical energy into electric energy of the storage battery.

The power generation impeller 18 is flushed by the sewage flowing down, so that the power generation impeller 18 is driven to rotate, and the potential energy of water is essentially converted into electric energy. The aqua storage tank can increase the flushing time of sewage to the power generation impeller 18, prolong the rotation time of the power generation impeller 18, enable the power generation impeller 18 to convert more power to supply the storage battery, and meanwhile, the guide nozzle 171 can standardize the flow direction of water flow, so that the water flow can act on the power generation impeller 18 better, the rotation speed of the power generation impeller 18 can be increased to a certain extent, and the power generation impeller 18 is further enabled to convert more power to supply the storage battery.

The working principle of the embodiment is as follows: the sewage flows in from the water inlet pipe 11, flows into the water storage tank 17 through the filtration of the basket type grating 2, then the sewage in the water storage tank 17 flows onto the power generation impeller 18 from the guide nozzle 171 and drives the power generation impeller 18 to rotate, and the power generation impeller 18 converts the rotational kinetic energy into the electric energy of the storage battery for storage. After a certain height of sewage is accumulated in the lower cavity 152, the submersible sewage pump 14 is started to treat the sewage, and the treated sewage is discharged through the water discharge pipe 141 and the water outlet pipe 12 in sequence. After the sewage is not introduced into the water inlet pipe 11, waiting for a certain time to reduce the moisture remaining on the impurities in the basket type grid 2, starting the motor 231 to drive the basket type grid 2 to move upwards into the upper cavity 151, then driving the piston rod of the cylinder 241 to extend out, so that the impurities are dumped into the temporary storage tank 161, then driving the piston rod of the cylinder 241 to contract, so that the shielding grid 22 shields the opening 25 again, and then controlling the basket type grid 2 to move downwards by the driving motor 231 until the communication port 21 is aligned with the water inlet 111. At intervals, the operator enters the upper chamber 151 to clean the impurities in the temporary storage tank 161.

The embodiment of the application also discloses an integrated prefabricated pump station and an assembled well plate open caisson construction method, which comprises the following steps:

s1: selecting a construction address, digging a wellhead on a road surface, and then reinforcing the wellhead of the open caisson;

s2: digging soil of the open caisson by using an excavator lamp device, then sealing the bottom of the open caisson by using concrete, carrying out sewage pipe jacking construction at the bottom of the open caisson, and clearing slurry in the open caisson;

s3: and transporting the integrated prefabricated pump station to the wellhead, hoisting the integrated prefabricated pump station to the position right above the wellhead, and finally installing and debugging the integrated prefabricated pump station.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. Prefabricated pump station of integration, including barrel (1) that has cavity (15), water inlet (111) of intercommunication cavity (15) are seted up on barrel (1) outer wall, its characterized in that: the inner wall of the cavity (15) is connected with a basket type grating (2), a communication opening (21) matched with the water inlet (111) is formed in the side face of one side of the basket type grating (2), the communication opening (21) is over against the water inlet (111), and sewage enters from the water inlet (111) and passes through the basket type grating (2) to the bottom of the cavity (15).

2. The prefabricated pump station of integration according to claim 1, characterized in that: the water inlet device is characterized by further comprising a first driving part (24), an opening (25) is formed in the side face, away from the water inlet (111), of the basket type grid (2), a shielding grid (22) is hinged to the side face, located at the opening (25), of the basket type grid (2), the first driving part (24) drives the shielding grid (22) to rotate, and the shielding grid (22) is used for shielding the opening (25).

3. The prefabricated pump station of integration according to claim 2, characterized in that: the opening (25) is positioned at the bottom of the basket type grating (2), the shielding grating (22) is provided with two limiting gratings (221), and the two limiting gratings (221) are respectively positioned at two sides of the shielding grating (22).

4. The prefabricated pump station of integration according to claim 2, characterized in that: the portable basket type grid lifting device is characterized by further comprising a second driving part (23), a workbench (16) for people to stand is arranged in the cavity (15), the workbench (16) divides the cavity (15) into an upper cavity (151) and a lower cavity (152), the water inlet (111) is located in the lower cavity (152), the basket type grid (2) is connected to the inner wall of the barrel body (1) in a sliding mode, the second driving part (23) drives the basket type grid (2) to slide to the upper cavity (151) from the lower cavity (152), and a through groove (163) which is used for the basket type grid (2) to pass through is formed in the workbench (16).

5. The prefabricated pump station of integration according to claim 4, characterized in that: the driving piece II (23) comprises a lead screw (234), a moving block (232), a motor (231) and a connecting rod (233), the motor (231) is arranged in the cylinder body (1), the lead screw (234) is coaxially arranged on an output shaft of the motor (231), the length direction of the lead screw (234) is parallel to the moving direction of the basket type grating (2), the moving block (232) is in threaded connection with the lead screw (234), the moving block (232) is in sliding connection with the inner wall of the cylinder body (1) along the length direction parallel to the lead screw (234), and two ends of the connecting rod (233) are respectively arranged on the moving block (232) and the basket type grating (2).

6. The prefabricated pump station of integration according to claim 5, characterized in that: the first driving piece (24) comprises an air cylinder (241) and an articulated rod (243), the air cylinder (241) is arranged on the connecting rod (233), two ends of the articulated rod (243) are respectively articulated on a piston rod of the air cylinder (241) and on the side wall of the shielding grating (22), when the piston rod of the air cylinder (241) is contracted, the shielding grating (22) abuts against the basket type grating (2), and when the piston rod of the air cylinder (241) extends out, an included angle between the shielding grating (22) and the basket type grating (2) is arranged in an obtuse angle mode.

7. The prefabricated pump station of integration according to claim 1, characterized in that: the electric energy conversion device is characterized in that a storage battery is arranged in the barrel (1) and used for supplying power to the motor (231), a power generation impeller (18) is connected to the inner wall of the barrel (1) in a rotating mode, the power generation impeller (18) is located below the basket type grating (2), sewage flows out of the basket type grating (2) to the power generation impeller (18) to drive the power generation impeller (18) to rotate, and the power generation impeller (18) is used for converting rotating mechanical energy into electric energy of the storage battery.

8. The prefabricated pump station of integration according to claim 7, characterized in that: the water storage tank (17) is arranged on the inner wall of the barrel body (1), the water storage tank (17) is located under the basket type grating (2), a guide nozzle (171) is arranged on the water storage tank (17), sewage flows into the water storage tank (17) from the basket type grating (2) and then flows out of the guide nozzle (171), the power generation impeller (18) is arranged close to the guide nozzle (171), and the sewage flowing out of the guide nozzle (171) is used for driving the power generation impeller (18) to rotate.

9. The construction method of the integrated prefabricated pump station and the assembled well plate open caisson according to any one of claims 1 to 8, comprising the following steps:

s1: selecting a construction address, digging a wellhead on a road surface, and then reinforcing the wellhead of the open caisson;

s2: digging soil of the open caisson by using an excavator lamp device, then sealing the bottom of the open caisson by using concrete, carrying out sewage pipe jacking construction at the bottom of the open caisson, and clearing slurry in the open caisson;

s3: and transporting the integrated prefabricated pump station to the wellhead, hoisting the integrated prefabricated pump station to the position right above the wellhead, and finally installing and debugging the integrated prefabricated pump station.

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