The working principle of a high-pressure electric test pump
Next, let's talk aboutHigh Pressure Electric Test Pumpthe working principle
Its function is to convert the mechanical energy of the power machine (such as motor, internal combustion engine) into the pressure energy of the liquid. The working principle: The cam is driven by the motor to rotate. When the cam pushes the plunger upward, the sealing volume formed by the plunger and the oil cylinder decreases, and the oil is squeezed out of the sealing volume through the one-way valve to the required place. When the cam rotates to the descending position of the curve, the tension spring forces the plunger downward, creating a certain vacuum. The oil in the oil tank enters the sealing volume under atmospheric pressure, causing the cam plunger to continuously rise and fall, and the sealing volume periodically decreases and increases, so the pump continuously sucks and discharges oil.
Function: The high pressure electric test pump is an ideal device for obtaining high-pressure liquids in laboratories and hydrostatic tests for various pressure vessels, pipelines, boilers, gas cylinders, valves, pressure vessels, and fire-fighting equipment. The electric high-pressure test pump products and supporting pressure testing and experimental projects have been used in aviation pressure testing experiments and national defense scientific research and development projects.
High Pressure Electric Test PumpWhat are the advantages?
The electric test pump works by utilizing the volume change generated by the reciprocating motion of the plunger parallel to the drive shaft within the plunger hole. Since the plunger and the plunger hole are circular, they can fit closely during processing, achieving high precision matching. Therefore, the high-pressure pump has the advantages of high volumetric efficiency, smooth operation, low noise, and low working pressure.
Main features of the high pressure electric test pump
The high pressure electric test pump has a horizontal cycloidal pinwheel reducer in the transmission part, which drives the crosshead to reciprocate in the horizontal slideway through the eccentric slider mechanism of the main shaft. The high pressure electric test pump drives the plunger to reciprocate in the hydraulic cylinder, discharging high-pressure liquid. The entire high pressure electric test pump body is placed above the water tank, fixed on a base flush with the water tank cover, and is relatively installed, facilitating the disassembly and maintenance of the hydraulic cylinder's vulnerable parts. The overall structure is compact and aesthetically pleasing.
High Pressure Electric Test PumpThe cylinder body is the key component of the test pump, consisting of the plunger assembly and valve system. At the same time, the plunger, sealing parts, sleeve, valve, and valve sleeve are key parts and vulnerable parts, which are matching parts. This high pressure electric test pump is a type of high-pressure reciprocating pump that not only has high-pressure working functions but also emphasizes safety and reliability under high pressure.
Therefore, the pressure liquid discharged from the two cylinders enters the collector. The upper middle part of the collector is equipped with a safety valve, and the opening pressure of the safety valve is calibrated to 1.1-1.2 times the additional working pressure at the time of leaving the factory. A pressure relief valve is installed above the rear part of the collector for emergency pressure relief, but it is not used for relieving the pressure of the tested container. In addition, a pressure gauge is installed at the front part above the collector to indicate pressure. To avoid the pulsating pressure of the pump affecting the instrument's reading, a damping device is installed at the lower part of the instrument.
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