Plunger type reciprocating pump with liquid sealing function
A plunger type, reciprocating pump technology, applied in variable capacity pump components, liquid variable capacity machines, liquid cleaning methods, etc., can solve the problems of accelerated wear of plunger and packing, leakage of sealing structure, environmental safety, etc. problems, to achieve the effect of improving sealing, increasing service life and preventing leakage
Pending Publication Date: 2022-06-28
DEPAMU HANGZHOU PUMP TECH
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Problems solved by technology
[0004] The plunger type reciprocating pump in the prior art mainly has two disadvantages: 1. Due to the sealing structure, there are inevitably leakage problems of varying degrees, which is not good for environmental safety
2. When the medium contains particles, the plunger and packing will accelerate wear
Method used
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Embodiment 1
[0030] like Figure 1 to Figure 4 As shown, this embodiment shows a plunger type reciprocating pump with a liquid sealing function, including a pump body 2, a cylinder liner 1 and a plunger 3 arranged in the cylinder liner 1, the plunger 3 along the cylinder liner 1 Sliding in the longitudinal direction, the pump body 2 is provided with a pump cavity 21, the two ends of the pump body 2 are respectively provided with an inlet 22 and an outlet 23, and the cylinder liner 1 is provided with a sealing assembly 4 and a pressing sleeve 6, so The sealing assembly 4 is provided with a sealing sleeve 7 on one side close to the pump body 2, the outer circumferential wall of the plunger 3 is located in the sealing assembly 4, the compression sleeve 6 and the sealing sleeve 7, and one end of the cylinder sleeve 1 is provided with a Adjust the adjusting nut 63 of the compression sleeve 6, the end of the cylinder sleeve 1 is provided with a thread matching the adjusting nut 63, the sealing s...
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The plunger type reciprocating pump with the liquid sealing function comprises a pump body, a cylinder sleeve and a plunger arranged in the cylinder sleeve, the plunger slides in the length direction of the cylinder sleeve, a pump cavity is formed in the pump body, a liquid inlet one-way valve and a liquid outlet one-way valve are arranged at the two ends of the pump body respectively, a sealing assembly and a pressing sleeve are arranged in the cylinder sleeve, and the pressing sleeve is arranged in the cylinder sleeve. A sealing sleeve is arranged on the side, close to the pump body, of the sealing assembly, the outer circumferential wall of the plunger is located in the sealing assembly, the pressing sleeve and the sealing sleeve, a cavity is formed in the sealing sleeve, a first liquid inlet and a first liquid outlet which are communicated with the cavity are formed in the two sides of the sealing sleeve respectively, the first liquid inlet provides constant-pressure flushing liquid for the cavity, and the second liquid outlet provides constant-pressure flushing liquid for the cavity. A spiral groove is formed in the side, close to the pump body, of the sealing sleeve, and an annular groove is formed in the side, close to the sealing assembly, of the sealing sleeve. The plunger type reciprocating pump has good sealing performance.
Description
【Technical field】 [0001] The invention relates to a plunger type reciprocating pump with a liquid sealing function, belonging to the technical field of plunger type reciprocating pumps. 【Background technique】 [0002] Plunger type reciprocating pump is characterized by simple structure, large flow, high working pressure, small flow pulsation, and flow is basically not affected by pressure. It is still indispensable in energy, petrochemical, thermal power, chemical, environmental protection and other industries. . [0003] The working principle of the reciprocating pump is: the gear shaft driven by the motor meshes with the gear on the crankshaft, the crankshaft obtains a decelerating circular motion, and the rotary motion is converted into the reciprocating motion of the plunger through the crankshaft connecting rod mechanism. The medium is moved by the reciprocating motion of the plunger, and the volume of the medium cavity is changed alternately. Under the action of the s...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F04B53/02F04B15/02B08B3/02B08B13/00
CPCF04B53/02F04B15/02B08B3/02B08B13/00
Inventor 徐卫华何祖兵周良童玥雯
Owner DEPAMU HANGZHOU PUMP TECH