Fastener for deep well pump and lifting device including same

Abstract

The invention discloses a fixing piece for a deep-well pump and a lifting device comprising the fixing piece. The fixing piece for the deep-well pump comprises a hoisting fixture and limiting pieces;a clamping part and a hoisting part are arranged on the hoisting fixture; the clamping part is used for clamping a delivery lift pipe on the deep-well pump; the hoisting part is connected with a traction mechanism; and the limiting pieces are arranged on the hoisting fixture, and can make reciprocating motion along the hoisting fixture to get close to or far from the hoisting part, so as to seal or open the hoisting part. According to the fixing piece for the deep-well pump and the lifting device comprising the fixing piece, the deep-well pump is integrally hoisted away from an underground well, so that the lifting difficulty is lowered; and the deep-well pump is tightly connected with the hoisting fixture, so that the situation that the deep-well pump is unhooked from the hoisting fixturein the hoisting process is avoided and a safe working environment is provided for maintainers.

Description

technical field [0001] The present invention relates to a fixing piece, more particularly, to a fixing piece for a deep well pump and a lifting device comprising the same. Background technique [0002] Deep well pumps are often used in underground wells to raise groundwater to the surface for farmland irrigation and water for humans and animals in high mountainous areas, or for water lifting projects such as rivers, reservoirs, and canals. When in use, the submersible pump is submerged into the water, and the submersible pump delivers water through the head pipe, usually the head can reach 300 meters. [0003] Usually, the deep well pump operates within 240m underground, and the total weight of the submersible pump, lift pipe and submersible cable is about 12 tons. If it is jammed, the total weight will be greatly increased. When maintaining the deep well pump, it is difficult to remove the deep well pump as a whole from the underground well. It is necessary to disassemble ...

AI Technical Summary

Problems solved by technology

When maintaining the deep well pump, it is difficult to remove the deep well pump as a whole from the underground well. It is necessary to disassemble the deep well pump into several sections and hoist them one by one, which causes great inconvenience to the maintenance and disassembly of the deep well pump and seriously affects the work of the deep well pump. schedule

In addition, during the completion of underground wells, there are overflowing welds, undercuts, and misalignment at the butt joints of the wellbore pipes; at the same time, years of crustal movement will cause deformation or relative displacement of the wellbore pipes

In the process of lifting the lift pipe, the flange of the lift pipe is often blocked by the sidewall pipe. This intermittent blockage forms an impact load on the deep well pump, causing the deep well pump to be decoupled from the spreader, which seriously threatens the maintenance personnel. safety, there is a major risk of accidents

Images