Direct fired plunger hydraulic pump

Abstract

The invention discloses a direct-combustion type plunger hydraulic pump. The direct-combustion type plunger hydraulic pump comprises a burner, a high-temperature heat exchanger, a steam chamber, at least one cylinder plunger mechanism, a steam type refrigerating machine and a control system, wherein the high-temperature heat exchanger is connected with the burner through a pipeline; the steam chamber is a sealed container; a sprinkling head, which is arranged above the high-temperature heat exchanger, is arranged in the steam chamber, the cylinder plunger mechanism is arranged above the steamchamber and mainly comprises a cylinder and a plunger, the piston of the cylinder and the piston of the plunger are connected with each other through an ejector rod with a retting mechanism, the bottom end of the cylinder is provided with an inlet valve communicated with the steam chamber, the side wall of the cylinder is provided with an exhaust valve, the exhaust valve is connected with the refrigerating machine through an exhaust pipe, and the refrigerating machine is connected with a water tank. Compared with the prior art, the direct-combustion type plunger hydraulic pump is characterized in that: mechanisms such as complicated crank shafts, connecting rods, flywheels and the like are eliminated; most heat energy produced by fuels is used for doing work, so energy loss is low; therefore, the direct-combustion type plunger hydraulic pump has the advantages of simple structure, energy conservation and high efficiency and is expected to provide an improved revolutionary power sourcefor full hydraulic mechanical equipment.

Description

Technical field: [0001] The invention relates to the field of hydraulic power, in particular to a direct-fired plunger hydraulic pump which uses fuel to directly convert heat energy into hydraulic energy. Background technique: [0002] With the mature application of hydraulic technology, there are more and more mechanical equipment driven by hydraulic energy, such as hydraulic excavators, full hydraulic road rollers, hydraulic rock drilling rigs, full hydraulic forklifts, etc. Their common characteristics are : There is no traditional mechanical transmission mechanism, and all mechanical actions are completed by hydraulic energy driving hydraulic motors and hydraulic cylinders. The hydraulic pump is a power component that provides hydraulic energy. Its function is to convert the mechanical energy of the prime mover into hydraulic energy and provide power to the entire hydraulic system. The structural forms of hydraulic pumps generally include gear pumps, vane pumps and plun...

AI Technical Summary

Problems solved by technology

In this energy conversion process, we found that it has gone through such a process: thermal energy is converted into mechanical energy through a diesel engine, and then mechanical energy is converted into hydraulic energy through a hydraulic oil pump. Under the current limited level of mechanical efficiency conversion, these two conversions There is a high energy loss in both steps

In particular, in the process of converting thermal energy into mechanical energy, diesel engines only use a small part of thermal energy to expand and do work, and most of the thermal energy is released through exhaust and radiators, resulting in a large energy loss.

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