Plunger packing sealing and lubricating device of reciprocating pump
A technology of packing, sealing and lubricating device, which is applied to the parts of pumping device for elastic fluid, pump components, variable displacement pump parts, etc. Plunger packing life, reducing frictional power consumption and improving pump efficiency
Active Publication Date: 2017-04-26
NINGBO HELI MECHANICAL PUMP CO LTD
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Problems solved by technology
In the oilfield water injection process, the conventional pressure is 16-40MPa, and the conveying medium will contain a certain proportion of particles and a certain degree of chloride ion salinity. These special working conditions will cause different degrees of impact on the life of the plunger packing. Affected by the impact, the life of most of the pump wearing parts in use on site has not reached the life specified in the national standard
Method used
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[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] Such as figure 1 The plunger packing seal lubrication device of the reciprocating pump shown includes an oil tank 1, an oil level gauge 2 installed in the oil tank, a float 7, an oil level gauge 3, and a one-way valve 8, which are set on the lower outer circle of the oil tank Booster pump 6, balance valve 9, oil supply lines A1, B1, C1, D1, e1, oil ring 12, exchange lines A, B, C, D, E, exchange tank 21, pressure relief valve 25, manual drain Valve 24, pressure gauge 22, balance pipeline 10, pressure gauge pull tube 23, body 15, plunger 17, front guide sleeve 14, main adjusting nut 19, main packing seal 13, auxiliary sealing packing 18, auxiliary adjusting nut 20, oil control valve 11.
[0018] Wherein the reciprocating pump comprises a pump body 16, a pump cavity is provided in the pump body 16, the pump body 16 is connected to the b...
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The invention relates to a plunger packing sealing and lubricating device of a reciprocating pump. The reciprocating pump comprises a pump body (16), wherein a pump cavity is formed in the pump body (16); the pump body (16) is connected with a box (15); a plunger passage is arranged in the box (15); a plunger (17) is arranged in the plunger passage of the box (15) and in the pump cavity of the pump body (16); seal packing is arranged between the plunger (17) and the inner wall of the plunger passage; the plunger packing sealing and lubricating device is characterized by further comprising an oil tank (1) filled with lubricating oil and an exchanging tank (21); the mounting position of the oil tank (1) is higher than the center line of the plunger (17); the oil tank (1) is communicated with the plunger passage in the box (15) through an oil supplementary pipeline; the mounting position of the exchanging tank (21) is lower than the center line of the plunger (17); and the exchanging tank (21) is communicated with the plunger passage in the box (15) through an exchanging pipeline. Compared with the prior art, the plunger packing sealing and lubricating device can prolong the service life of plunger packing and reduces power dissipation of friction.
Description
technical field [0001] The invention relates to a packing seal lubricating device for a reciprocating pump plunger. Background technique [0002] The reciprocating plunger pump is mainly composed of two parts: the power end and the fluid end, in which the crankshaft, crankcase, connecting rod, crosshead, connecting rod, etc. Driven by the reciprocating work, the medium is quantitatively pressurized and transported to the destination. In order to meet the requirements of the working conditions of the conveying medium, the material selection of each component in the liquid end is determined according to the composition of various media, so the liquid end acts as the heart of the reciprocating pump. The reliability of the pump, the life of the wearing parts, and the main indicators of the pump efficiency are determined by the hydraulic end. The life of the plunger and packing is the most concerned in the field operation. The life of the wearing parts of the reciprocating pump ...
Claims
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IPC IPC(8): F04B53/18
CPCF04B53/18
Inventor 陈明海陈英峰张鹤李罗君匡伐
Owner NINGBO HELI MECHANICAL PUMP CO LTD