A plunger pump for real-time discharge of excess air in the pump cavity

Abstract

The invention relates to the field of plunger pump equipment, and discloses a plunger pump that is convenient for real-time discharge of excess air in a pump cavity, including a plunger pump pipeline, a drive case, a transmission assembly, a plunger rod, a sealing sleeve, a water inlet pipe and Outlet pipe, the drive box is arranged on the top of the plunger pump pipeline. The plunger pump is convenient for real-time discharge of excess air in the pump cavity. Through the design of the sealing sleeve, upper sealing sleeve, lower sealing sleeve and floating block, the upper sealing sleeve blocks the through groove during the upward pumping process of the sealing sliding sleeve. Perform negative pressure pumping. When the sealing sleeve moves down to drain water, the sealing sleeve first moves down relative to the lower sealing sleeve. The excess air below the sealing sleeve enters the top of the sealing sleeve through the through groove, and the lower sealing sleeve blocks the through groove. Then drain the water to discharge the excess air under the sealing sleeve, so that the upward movement of the sealing sleeve remains unchanged, and the water pumping volume remains stable each time. Compared with the existing plunger pump, it effectively improves pumping efficiency.

Description

technical field [0001] The invention relates to the field of plunger pump equipment, in particular to a plunger pump which facilitates real-time discharge of excess air in a pump chamber. Background technique [0002] The plunger hydraulic pump relies on the reciprocating movement of the plunger in the cylinder to form a change in the sealing volume to realize water absorption and pressure. The main component of the plunger and the working part of the cylinder are cylindrical, so it is easy to process and It has high matching precision, good sealing performance and compact structure, and the maximum stroke of the plunger is easy to adjust, so that it is easy to adjust the displacement and flow direction of the pump. Therefore, it is widely used in fields such as oil mines and water conservancy. [0003] The working principle of the existing plunger pump is as follows Image 6 : Control the rotation of the eccentric wheel unit in the driving case 2, and use the transmission o...

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Problems solved by technology

[0004] However, since the water or oil contains air, as the plunger pump works for a long time, part of the gas will be separated from the water, so that the amount of air below the sealing sleeve 5 will increase, and the upward movement of the sealing sleeve 5 will remain unchanged. In the case of negative pressure, the amount of negative pressure decreases, which reduces the amount of water subsequently pumped into the drive case 2, resulting in a decrease in the working efficiency of the plunger pump. After a period of time, it is necessary to disassemble the pipeline of the plunger pump, start the pump body, and empty Load operation, set the deflation point at the highest end of the system to deflate, resulting in more troublesome exhaust

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