Mechanical sealing structure of high-pressure rotor pump
A technology of mechanical seal and high pressure rotor, applied in mechanical equipment, rotary piston type/swing piston type pump parts, pump components, etc., can solve the problems of complex structure and inconvenient assembly, etc.
Active Publication Date: 2021-03-16
强大泵业集团行唐泵业有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to provide a high-pressure rotor pump mechanical seal structure, aiming to solve the problem that the structure is relatively complicated and inconvenient to assemble
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[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0028] Please also refer to figure 1 with Figure 4 , the mechanical seal structure of the high-pressure rotor pump provided by the present invention will now be described. The mechanical seal structure of the high-pressure rotor pump includes a pump body 1 , a seal cover 2 , a rotating shaft 16 , a first seal ring 7 , a second seal ring 8 and a pressure liquid 9 . The sealing cover 2 is installed on one side of the pump body 1; the inner edge of the sealing cover 2 is provided with a fixed sleeve 3. The rotating shaft 16 is installed in the pump body 1 and the ...
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The invention provides a mechanical sealing structure of a high-pressure rotor pump, and belongs to the technical field of pump body sealing. The mechanical sealing structure comprises a pump body, asealing cover, a rotating shaft, a first sealing ring, a second sealing ring and pressure liquid. The sealing cover is mounted at one side of the pump body; a fixing sleeve is arranged at the inner edge of the sealing cover; and the rotating shaft is arranged in the pump body and the fixing sleeve in a penetrating manner and sleeved with a positioning sleeve, and the positioning sleeve is arrangedat the inner side of the fixing sleeve in a penetrating manner. The first sealing ring is positioned on the positioning sleeve and abuts against the fixing sleeve. The first sealing ring is used formaking contact with liquid conveyed by the pump body. The second sealing ring is positioned on the fixing sleeve and abuts against the positioning sleeve, the second sealing ring and the first sealingring are arranged in a spaced manner, and an oil filling cavity is defined by the second sealing ring, the first sealing ring, the fixing sleeve and the positioning sleeve. The oil filling cavity isfilled with the pressure liquid, and the pressure liquid is used for balancing the pressure of the liquid borne by the first sealing ring. The mechanical sealing structure of the high-pressure rotor pump is simple to assemble and convenient to install and assemble.
Description
technical field [0001] The invention belongs to the technical field of pump body sealing, and more specifically relates to a mechanical sealing structure of a high-pressure rotor pump. Background technique [0002] At present, the existing rotor pump mechanical seals have many leakage points and large leakage due to the complex structure and other reasons, and the leakage material is easy to enter the bearing end of the gearbox. After the transported liquid flows in from the feed port, it moves from the low pressure area of the pump body cavity to the high pressure area under the action of the two rotors in the pump body, and then flows out from the discharge port. Due to the high liquid pressure in the high pressure area, the high pressure The liquid in the pump area will flow into the bearing end of the gearbox from the gap between the shaft hole wall of the pump body, so that there will be a greater squeezing force on the sealing ring that acts as a seal. For this reaso...
Claims
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IPC IPC(8): F04C15/00
CPCF04C15/0026
Inventor 王姝
Owner 强大泵业集团行唐泵业有限公司