Auxiliary lifting device for submersible pump in sewage pump room

Abstract

An auxiliary lifting device for submersible pumps in a sewage pump room relates to sewage treatment. The auxiliary lifting device for the submersible pump in the sewage pump room is characterized in that the auxiliary lifting device comprises an auxiliary lifting frame, a movable lifting hook, universal wheels and an auxiliary circular lifting ring, the auxiliary lifting hook is installed on the upper portion of the auxiliary lifting frame, and the universal wheels are installed on the lower portion of the auxiliary lifting frame; a plurality of auxiliary lifting hooks are mounted on a chain matched with the submersible pump in sections; the auxiliary lifting device for the submersible pump in the sewage pump room is simple in structure, easy to manufacture, low in manufacturing cost, convenient and fast to operate and low in maintenance cost, and can be operated and lifted on the ground to complete the work of overhauling and maintaining the submersible pump; the universal wheels are utilized to realize free movement of the auxiliary hoisting frame, so that the hoisting requirements of a plurality of water pumps in the same pump room are met; and the water pump can be conveniently moved out of the pump room to be replaced or maintained through the device.

Description

Technical Field

[0001] The utility model relates to sewage treatment, in particular to a sewage pump room submersible pump auxiliary lifting device which is small in size, suitable for indoor use, and saves time and effort. Background Art

[0002] Urban domestic sewage is generally collected through sewage branches and trunks, and finally converged to urban sewage treatment plants for treatment. As the urban construction area continues to expand, the depth of the main pipes that collect sewage by gravity flow is also increasing. At present, the buried depth of the ends of most urban sewage main pipes is more than 5 meters, or even more than 10 meters. Sewage treatment plants need to set up underground sewage lifting pump rooms at the end of the main pipes to lift sewage to treatment structures for treatment, or set up sewage lifting pump rooms at the end of sewage treatment to lift the treated tail water that meets the standards for reuse or discharge.

[0003] For sewage pumping rooms with deep underground water pools, most of them use submersible pumps to lift sewage. Generally, the net weight of submersible pumps in small and medium-sized sewage pumping rooms is about 100-500kg, and the weight of submersible pumps in large sewage pumping rooms can reach more than 1000kg. Submersible sewage pumps are installed at the bottom of the pool in a coupling manner, and are equipped with chains and guide rods. When the water pump is overhauled, the crane is used to pull the chain to lift the water pump from the bottom of the pool to the ground. After the overhaul is completed, the water pump is lowered along the guide rod to the base of the pool bottom, and the automatic coupling installation is completed.

[0004] The crane of the pump room is generally installed under the beam on the top of the building on the ground of the pump room. Considering the economic efficiency of the building and the maintenance of the crane, the clear height of the building in the pump room is generally 4-6m, and the height from the crane hook to the ground of the pump room is generally within 5m. Assuming that the lifting height of the crane in a pump room is 5m, but the height from the bottom of the underground water tank to the ground is 6m, there are the following problems in the lifting process of the submersible sewage pump: the crane hook descends to the ground and hooks the chain that is equipped with the submersible sewage pump and extends to the ground. After lifting 5m, the crane hook reaches the top, but the water pump is still 1m below the ground and has not yet separated from the guide rod and cannot move left and right. This situation is more common in small and medium-sized pump rooms that have been built in China. Due to the height limit of the building, the lifting height of the crane cannot be increased. Therefore, when repairing the water pump, the maintenance personnel need to go down to the middle or bottom of the sewage pool and hook the crane hook to the water pump or the middle section of the chain to lift the water pump out of the ground at one time. However, maintenance personnel need to drain the water in the underground pool in advance or dive in before entering. The work intensity is high and accidents such as slipping, drowning and poisoning by harmful gases are prone to occur, which is also extremely dangerous. Summary of the invention

[0005] The utility model aims to solve the problem that the current small pump room submersible pump is inconvenient to lift and there are potential safety hazards, and provides a sewage pump room submersible pump auxiliary lifting device which is small in size, suitable for indoor use, saves time and effort.

[0006] The utility model is an auxiliary lifting device for a submersible pump in a sewage pump room, characterized in that the auxiliary lifting device comprises an auxiliary lifting frame, a movable hook, a universal wheel and an auxiliary circular lifting ring, the upper part of the auxiliary lifting frame is equipped with an auxiliary lifting hook, and the lower part is equipped with a universal wheel; a plurality of auxiliary hooks are installed in sections on a chain matching the submersible pump; wherein:

[0007] The auxiliary lifting frame includes a cross bar, a vertical bar, a bottom force-bearing bar and an auxiliary bar. The cross bar is horizontally arranged on the top, and two vertical bars are vertically welded at both ends. Bottom force-bearing bars are welded at the bottom of the two vertical bars, and the bottom force-bearing bars are perpendicular to the vertical bars and the cross bar respectively; the auxiliary bar is tilted and fixed at the angle between the cross bar and the vertical bar, and the angle between the vertical bar and the bottom force-bearing bar; a universal wheel is installed at the lower part of the bottom force-bearing bar.

[0008] The height of the vertical pole is not less than 1.2m, and the net height of the auxiliary lifting frame is greater than the net height of the submersible pump to be lifted; the length of the cross bar is 1.2-2m; the auxiliary hook is a round lifting ring with a diameter of 10cm, which is installed at equal intervals on the chain matching the submersible pump, and the distance between two adjacent auxiliary hooks is 1.0m-1.5m.

[0009] The utility model discloses an auxiliary lifting device for submersible pumps in sewage pump room, which has the advantages of simple structure, easy manufacture, low cost, convenient operation and low maintenance cost, and can realize lifting operation on the ground to complete the inspection and maintenance of submersible pumps; the universal wheels are utilized to realize free movement of the auxiliary lifting frame to meet the lifting requirements of multiple water pumps in the same pump room; the device can also be used to conveniently move the water pump out of the pump room for replacement or repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the plan layout of the pump room that requires auxiliary lifting equipment.

[0011] Figure 2 yes Figure 1 AA cross-section diagram.

[0012] Figure 3 This is a large-scale drawing of the submersible pump auxiliary lifting device of the utility model.

[0013] Figure 4 yes Figure 3 BB cross-section diagram.

[0014] Among them: 1- auxiliary lifting frame, 2- movable hook, 3- universal wheel, 4- auxiliary round lifting ring, 5- submersible pump, 6- chain, 7- crane. DETAILED DESCRIPTION

[0015] Embodiment 1: An auxiliary lifting device for a submersible pump in a sewage pump room, comprising an auxiliary lifting frame, a movable lifting hook, a universal wheel and an auxiliary circular lifting ring, wherein the auxiliary lifting hook is installed on the upper part of the auxiliary lifting frame, and the universal wheel is installed on the lower part; a plurality of auxiliary lifting hooks are installed in sections on a chain matching the submersible pump; wherein:

[0016] The auxiliary lifting frame includes a crossbar, a vertical bar, a bottom stress bar and an auxiliary bar. The crossbar is horizontally arranged at the top, and two vertical bars are vertically welded at both ends. The bottom of the two vertical bars are respectively welded with bottom stress bars, and the bottom stress bars are respectively perpendicular to the vertical bars and the crossbar; the auxiliary bar is tilted and fixed at the angle between the crossbar and the vertical bar, and the angle between the vertical bar and the bottom stress bar; a universal wheel is installed at the bottom of the bottom stress bar. The height of the vertical bar is not less than 1.2m, and the net height of the auxiliary lifting frame is greater than the net height of the submersible pump to be lifted; the length of the crossbar is 1.2-2m; the auxiliary hook is a round lifting ring with a diameter of 10cm, which is evenly installed on the chain of the submersible pump, and the distance between two adjacent auxiliary hooks is 1.0m-1.5m.

[0017] For sewage pump rooms whose upper building clearance height is less than the depth of the underground water tank, a crane installed on the roof of the pump room is used to lift the submersible pump of the underground water tank. The working process is as follows: first, the crane hook is lowered to the ground, hooked on the chain of the submersible pump, and then lifted; when the crane hook rises to the crane position, the submersible pump has not yet risen to the ground, but it can no longer be lifted; next, move the device above the submersible pump, and use the movable hook of the auxiliary lifting frame to hook an auxiliary circular lifting ring installed on the submersible pump chain nearby; lower the crane hook, and the submersible pump is hooked by the auxiliary lifting frame and hung relatively in the middle of the underground water tank; the crane hook continues to descend to the ground height, hooks the auxiliary circular lifting ring that is now near the ground, and lifts again; in this way, through the relay form of the crane and the device, the water pump is finally lifted out of the pump room ground.

[0018] When the submersible pump is lifted above the ground, an auxiliary lifting device can be used to hook the lifting ring of the submersible pump or the auxiliary circular lifting ring at the end of the chain to ensure that the submersible pump is completely off the ground; then 1-2 people push the auxiliary lifting device to move the submersible pump to the maintenance area in the pump room, or directly transport it outside the pump room for the next step of processing.

Claims

1. A sewage pump room submersible pump auxiliary lifting device, characterized in that The auxiliary lifting device includes an auxiliary lifting frame, a movable hook, a universal wheel and an auxiliary circular lifting ring. The auxiliary lifting hook is installed on the upper part of the auxiliary lifting frame, and the universal wheel is installed on the lower part; several auxiliary hooks are installed in sections on the chain matching the submersible pump; wherein: The auxiliary lifting frame includes a cross bar, a vertical bar, a bottom force-bearing bar and an auxiliary bar. The cross bar is horizontally arranged on the top, and two vertical bars are vertically welded at both ends. Bottom force-bearing bars are welded at the bottom of the two vertical bars, and the bottom force-bearing bars are perpendicular to the vertical bars and the cross bar respectively; the auxiliary bar is tilted and fixed at the angle between the cross bar and the vertical bar, and the angle between the vertical bar and the bottom force-bearing bar; a universal wheel is installed at the lower part of the bottom force-bearing bar.

2. The auxiliary lifting device for submersible pumps in sewage pump room according to claim 1, characterized in that The height of the vertical pole is not less than 1.2m, and the net height of the auxiliary lifting frame is greater than the net height of the submersible pump to be lifted; the length of the cross bar is 1.2-2m; the auxiliary hook is a round lifting ring with a diameter of 10cm, which is installed at equal intervals on the chain matching the submersible pump, and the distance between two adjacent auxiliary hooks is 1.0m-1.5m.

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