Free floating type submersible pump set

Abstract

The free floating type submersible pump set comprises a submersible pump and a buoy structure, the buoy structure comprises a left buoy, a right buoy, an upper connecting plate and a lower connecting plate, the left buoy and the right buoy are the same and are symmetrically arranged at intervals, the left buoy and the right buoy are connected through the upper connecting plate and the lower connecting plate respectively, and the lower connecting plate is downwards connected with a pump support. A submersible pump coaxial with the left and right buoys is mounted in the pump bracket through hoisting of a shock absorber and / or supporting of the shock absorber, the submersible pump is upwards connected with a water outlet pipe through a flange, and the water outlet pipe is arranged in a gap between the left and right buoys and is coaxially connected out of the front or rear end surfaces of the left and right buoys forwards or backwards along the submersible pump; front and rear pulling seats are arranged on the front and rear sides of the outer sides of the upper ends of the left and right buoys; and pulling ropes are hooked on the front and rear pulling seats. The structure is simple, and operation is convenient and stable.

Description

Technical Field

[0001] The utility model relates to a submersible pump group structure, in particular to a free-floating submersible pump group. Background Art

[0002] In water conservancy engineering operations, traditional submersible pump groups directly sink the submersible pumps to the bottom of the water for pumping operations. Affected by the bottom silt, the pumping performance and efficiency are poor. For this reason, the existing submersible pump groups pump water from under the bracket to the required water intake layer, which can ensure the pumping performance. However, it requires a pump ship or platform to raise and lower the bracket on the water surface, with many supporting equipment and high operating costs. If a pump ship or platform is not used, the bracket needs to be fixed in the water body, and the installation, maintenance and use of the bracket are extremely inconvenient. Summary of the invention

[0003] The utility model provides a free-floating submersible pump group which has a simple structure, is convenient and stable to operate, and can meet the requirements of self-free lifting and lowering water-taking operations.

[0004] The technical solution adopted by the utility model is: a free-floating submersible pump group, including a submersible pump and a buoy structure, characterized in that: the buoy structure includes left and right buoys and upper and lower connecting plates, the left and right buoys are identical and symmetrically spaced, the left and right buoys are connected up and down respectively via upper and lower connecting plates, the lower connecting plate is downwardly connected to a pump bracket, a submersible pump coaxially with the left and right buoys is installed in the pump bracket via a shock absorber hoisting and / or supported by a shock absorber, the submersible pump is upwardly connected to a water outlet pipe via a flange, the water outlet pipe is arranged in the interval between the left and right buoys and is connected to the front or rear end face of the left and right buoys forward or backward along the coaxial direction of the submersible pump; front and rear pull-connecting seats are arranged at the front and rear of the outer sides of the upper ends of the left and right buoys, and pull-connecting ropes are hooked on the front and rear pull-connecting seats.

[0005] The upper ends of the left and right buoy structures are connected with air inlets, and the lower ends are connected with water inlets, and valves are arranged on the air inlets and the water inlets.

[0006] The left and right buoys are divided into three chambers: front, middle and rear. The front and rear chambers are smaller than the middle chamber, and the front and rear chambers have the same axial length. The middle chamber is respectively connected to an air inlet and a water inlet at the top and bottom, and valves are provided on the air inlet and the water inlet. The lower ends of the front and rear chambers are both connected to a balanced water supply port, and the balanced water supply port is connected to a balanced regulating valve.

[0007] The axial length of the middle chamber is greater than the sum of the axial lengths of the front and rear chambers.

[0008] The included angles of the pulling ropes hooked on the front and rear pulling seats on the left and right buoys are 90 degrees respectively.

[0009] The water outlet pipe is beyond the front or rear end surface of the left or right buoy and is externally connected to a universal spherical joint.

[0010] The pump bracket is a hollow bracket.

[0011] At least one side of the water inlet of the submersible pump on the hollow bracket is a hollow surface.

[0012] A filter net is arranged on the hollow surface of the hollow bracket.

[0013] The beneficial effects of the utility model are:

[0014] 1. The left and right buoys are inflated through the air port. When the buoy is put into the water, the buoy is filled with gas. After being put into the water, the valves of the air port and the water port are opened as needed to control the water inflow into the buoy to meet the suspension height of the left and right buoys in the water, thereby meeting the pumping height of the submersible pump in the pump bracket under the lower connecting plate. The adjustment is convenient and no other supporting equipment is required, which is conducive to reducing the use cost;

[0015] 2. The left and right buoys can be divided into front, middle and rear chambers. The middle chamber is filled with water and air to control the height. The front and rear chambers are filled with water from the balanced water replenishment port through the balance regulating valve to replenish the water volume in the chamber, thereby controlling the axial front and rear balance of the entire pump group structure to ensure stable and safe operation of the submersible pump;

[0016] 3. A pulling seat is set at the front and rear positions of the left and right buoys. The pulling seat is hooked with a pulling rope. Through four pulling ropes that are vertically connected in sequence on the circumference, the position of the whole body on the water surface or in the water body is effectively pulled to maintain the stability of the working position in the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 for Figure 1 Left view of

[0019] Figure 3 for Figure 1 Top view of the .

[0020] In the figure: left buoy 1, right buoy 2, front chamber 3, middle chamber 4, rear chamber 5, air inlet 6, water inlet 7, valve 8, balanced water supply inlet 9, balanced regulating valve 10, pull-connecting seat 11, pull-connecting rope 12, upper connecting plate 13, lower connecting plate 14, pump bracket 15, shock absorber 16, submersible pump 17, flange 18, and water outlet pipe 19. DETAILED DESCRIPTION

[0021] The following is a further description with reference to the accompanying drawings.

[0022] Figure 1-3A free-floating submersible pump unit shown includes a left buoy 1, a right buoy 2, a valve 8, a balancing regulating valve 10, a pull-connecting seat 11, a pull-connecting rope 12, an upper connecting plate 13, a lower connecting plate 14, a pump bracket 15, a shock absorber 16, a submersible pump 17, a flange 18, and a water outlet pipe 19.

[0023] The left and right buoys 1 and 2 are identical and symmetrically spaced. The left and right buoys are divided into three chambers 3, 4, and 5, namely, front, middle, and rear. The front and rear chambers are smaller than the middle chamber, and the front and rear chambers have the same axial length. The middle chamber 4 is connected to an air inlet 6 and a water inlet 7 at the top and bottom, respectively. The air inlet and the water inlet are provided with valves 8. The lower ends of the front and rear chambers 3 and 5 are connected to a balanced water replenishment inlet 9, and the balanced water replenishment inlet is connected to a balanced regulating valve 10. Two front and rear pull-connection seats 11 are provided at the front and rear of the outer sides of the upper ends of the left and right buoys 1 and 2, and a pull-connection rope 12 is hooked on the pull-connection seats.

[0024] The left and right buoys 1, 2 are connected up and down respectively via upper and lower connecting plates 13, 14. The lower connecting plate 14 is connected downwardly to a pump bracket 15. A submersible pump 17 coaxial with the left and right buoys is supported and installed in the pump bracket 15 via a shock absorber 16. The submersible pump is connected upwardly to a water outlet pipe 19 via a flange 18. The water outlet pipe is arranged in the interval between the left and right buoys and is connected to the front end surfaces of the left and right buoys forward or backward along the coaxial direction of the submersible pump.

[0025] In this embodiment, the axial length of the middle chamber is greater than the sum of the axial lengths of the front and rear chambers, preferably greater than 2 times.

[0026] In this embodiment, the pump bracket is a hollow bracket; a filter net may also be installed on the hollow side.

[0027] On the basis of this embodiment, a universal ball joint can be externally connected to the front or rear end surface of the water outlet pipe beyond the left or right buoy.

Claims

1. A free-floating submersible pump assembly, comprising a submersible pump and a buoy structure, characterized in that: The pontoon structure includes left and right pontoons and upper and lower connecting plates. The left and right pontoons are identical and symmetrically spaced. The left and right pontoons are connected up and down respectively via the upper and lower connecting plates. The lower connecting plate is downwardly connected to a pump bracket. A submersible pump coaxial with the left and right pontoons is installed in the pump bracket via a shock absorber and / or supported by a shock absorber. The submersible pump is upwardly connected to a water outlet pipe via a flange. The water outlet pipe is arranged in the interval between the left and right pontoons and is connected to the front or rear end face of the left and right pontoons forward or backward along the coaxial direction of the submersible pump. Front and rear pulling seats are arranged at the front and rear outer sides of the upper ends of the left and right pontoons, and pulling ropes are hooked on the front and rear pulling seats.

2. A free-floating submersible pump set according to claim 1, characterized in that: The upper ends of the left and right buoy structures are connected with air inlets, and the lower ends are connected with water inlets, and valves are arranged on the air inlets and the water inlets.

3. A free-floating submersible pump set according to claim 1, characterized in that: The left and right buoys are divided into three chambers: front, middle and rear. The front and rear chambers are smaller than the middle chamber, and the front and rear chambers have the same axial length. The middle chamber is respectively connected to an air inlet and a water inlet at the top and bottom, and valves are provided on the air inlet and the water inlet. The lower ends of the front and rear chambers are both connected to a balanced water supply port, and the balanced water supply port is connected to a balanced regulating valve.

4. A free-floating submersible pump set according to claim 3, characterized in that: The axial length of the middle chamber is greater than the sum of the axial lengths of the front and rear chambers.

5. A free-floating submersible pump set according to claim 1, characterized in that: The included angles of the pulling ropes hooked on the front and rear pulling seats on the left and right buoys are 90 degrees respectively.

6. A free-floating submersible pump set according to claim 1, characterized in that: The water outlet pipe is beyond the front or rear end surface of the left or right buoy and is externally connected to a universal spherical joint.

7. A free-floating submersible pump assembly according to claim 1, characterized in that: The pump bracket is a hollow bracket.

8. A free-floating submersible pump assembly according to claim 7, characterized in that: At least one side of the water inlet of the submersible pump on the hollow bracket is a hollow surface.

9. A free-floating submersible pump assembly according to claim 7 or 8, characterized in that: A filter net is arranged on the hollow surface of the hollow bracket.

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