Water injection booster pump oil lubrication sealing circulating device

Abstract

The invention relates to an oil lubrication and sealing circulation device for a water injection booster pump, comprising a pump body, a plunger is arranged in the pump body, an auxiliary box body is arranged between the plunger and the pump body, the plunger and the pump body A sealing part is arranged between the auxiliary body; one end of the auxiliary body is provided with a pressure cap, the pressure cap is located between the auxiliary body and the plunger and the pressure cap is against the sealing part Above: a lubricating oil channel is provided in the pressure cap, one end of the lubricating oil channel is connected to an oil supply system, and the other end of the lubricating oil channel is opened on the contact surface between the pressure cap and the plunger; The pump body is provided with an oil return pipe connecting the pump body and the oil supply system. The sealing part ensures the sealing of the plunger movement process, and the oil supply system supplies oil to the lubricating oil passage, which not only effectively ensures the lubrication between the plunger, the pressure cap and the sealing part, but also reduces the relative movement between the plunger and the sealing part. resistance; at the same time, the sealing effect of the sealing parts is also improved to avoid the leakage of sewage.

Description

technical field [0001] The invention relates to an oil lubrication sealing circulation device of a water injection booster pump. Background technique [0002] With the deep mining of oil fields and the increasingly stringent requirements for water injection, combined with the emphasis on environmental protection requirements in oil fields. After years of research and development and a lot of practice, the water injection booster pump is specially launched. At present, the oilfield water injection booster pump uses traditional aramid packing seals to solve the lubrication problem with its own leakage of sewage. Leaked sewage needs to be recycled regularly, and if the recycling is not timely, it will easily cause pollution. Traditional aramid packing seals have a short service life. Oil production workers have to tighten the packing every day to prevent a large amount of sewage from leaking out. There are major safety hazards in the operation process. Contents of the invent...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a water injection booster pump oil lubrication sealing circulation device that can solve the problem of water leakage of the water injection booster pump and the short life of the seal of the traditional aramid packing, and can reduce the labor intensity of the oil extraction workers

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