Integral type sealing box for reciprocating type plunger pump
A kind of technology of integral type and sealing box, which is applied in variable displacement pump components, pump components, liquid fuel engines, etc., to achieve the effect of compact and convenient structure, easy control of assembly precision, and increase of overall reliability
Active Publication Date: 2013-01-23
SHANGHAI DALONG MACHINE FACTORY CO LTD
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Problems solved by technology
[0011] Therefore, under the working conditions of high temperature, high pressure and oil-coal slurry medium, the existing reciprocating coal slurry raw material pump is aimed at the high wear caused by the structure of the plunger and the plunger seal, and the thermal expansion and thermal stress caused by the high temperature working condition. The impact of parts positioning accuracy, etc., there are defects and deficiencies, which need improvement and innovation
Method used
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Embodiment
[0030] Such as figure 2 As shown, an integral sealing box for a reciprocating plunger pump is sleeved on the plunger 6. The integral sealing box includes a plunger 6, a main sealing box body 1, a secondary sealing box body 2, and a front guide sleeve 3. Rear guide sleeve 4, injection sleeve 5, etc., the main sealing box body 1 is an integral sealing box body, the auxiliary sealing box body 2, the front guide sleeve 3, the rear guide sleeve 4 and the injection sleeve 5 are all Set between the main sealing box body 1 and the plunger 6, the secondary sealing box body 2 is located at the rear end of the main sealing box body 1, the rear guide sleeve 4 is located inside the secondary sealing box body 2, the The front guide sleeve 3 is located in the middle of the main sealing body 1, the injection sleeve 5 is located between the front guide sleeve 3 and the rear guide sleeve 4, and the front guide sleeve 3 is closely connected to the injection sleeve 5. A sealing packing is arrang...
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The invention relates to an integral type sealing box for a reciprocating type plunger pump, and the integral type sealing box comprises a plunger, a primary sealing box body, a secondary sealing box body, a front guide sleeve, a rear guide sleeve, an injection sleeve, a water-proof sleeve, a sealing ring and the like, wherein the primary sealing box body is an integral type sealing box body, thesecondary sealing box body, the front guide sleeve, the rear guide sleeve and the injection sleeve are all arranged between the primary sealing box body and the plunger, the secondary sealing box body is arranged on the rear end of the primary sealing box body, the rear guide sleeve is positioned in the secondary sealing box body, the front guide sleeve is positioned on the middle part of the primary sealing box body, the injection sleeve is arranged on between the front guide sleeve and the rear guide sleeve, and the front guide sleeve is tightly connected with the injection sleeve. Comparedwith the prior art, the integral type sealing box provided by the invention has a simple structure and can be suitable for the bad situations of high temperature, high pressure and particle media with high solid weight concentration ratio.
Description
Technical field [0001] The invention relates to a reciprocating plunger pump, in particular to an integral sealing box in a reciprocating coal slurry raw material pump suitable for high-temperature, high-pressure, and high solid weight-concentration particle media. Background technique [0002] When the coal slurry raw material pump is running, the working medium has three "states", that is, the coal slurry medium has three forms of liquid, gas and solid at the same time. The operating conditions have three "high": high temperature (max290℃), high pressure (max20.1MPa) and coal The solid weight concentration ratio of the slurry medium (max52%), these harsh working conditions, have no precedents in the field of reciprocating plunger pumps at home and abroad. [0003] The coal slurry raw material pump is generally a five-plunger structure, and its main working conditions: the working medium is 52%+48% liquid coal slurry, the highest medium temperature is 290°, and the outlet pressure...
Claims
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IPC IPC(8): F04B53/02
Inventor 李君峰朱勇
Owner SHANGHAI DALONG MACHINE FACTORY CO LTD