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Twin-screw pump

A twin-screw pump and screw technology, applied to pumps, pump components, rotary piston pumps, etc., can solve the problems of low maximum working pressure and low work efficiency of twin-screw pumps, and achieve significant energy saving effects, improved efficiency, and simple structure Effect

Active Publication Date: 2017-05-31
JIANGSU HONGSHENG PUMP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a twin-screw pump, which solves the problems of low maximum working pressure and low working efficiency of the prior art twin-screw pump

Method used

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Embodiment Construction

[0027] In the description of the present invention, "inside" facing the inside of the pump body and "outside" facing the outside of the pump body are only for the convenience of describing the present invention, rather than indicating or implying that the referred device or element must have a specific orientation. Furthermore, the terms "Barrier B", "O-ring A", "O-ring B", "O-ring C", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

[0028] Such as figure 1 , figure 2 , image 3 as well as Figure 4 As shown, the present invention includes a screw rod 105, a pump body 104, a shaft frame 103, a screw shaft 101, and a mechanical seal 102. The mechanical seal 102 includes a shaft sleeve 1, a static ring 15, a static ring seat 16, a moving ring 14, and a spring 12 And the moving ring seat 11, the thread of the screw rod 105 is a multi-start thread, and the static ring seat 16 is provided with an oil groove...

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Abstract

The invention discloses a twin-screw pump comprising a threaded rod, a pump body, a shaft frame, a threaded rod shaft and a mechanical seal. The mechanical seal comprises a shaft sleeve, a fixed ring, a fixed ring base, a movable ring, a spring and a movable ring base. The thread of the threaded rod is a multiple thread. An oil groove is formed in the fixed spring base. The spring is a wavy spring. The twin-screw pump is simple in structure, the thread of the threaded rod is the multiple thread, the conveying efficiency is higher, the conveying efficiency is higher, efficiency is improved by 60%-70% with a double-head thread as an example, the energy conservation effect is remarkable, and the electric charge cost of enterprises is greatly reduced. By means of the mechanical seal adopting a single-end-face double-framework oil seal, the highest work pressure of the pump body can reach 5 MPa, the sealing effect is ensured, medium leakage is avoided, and the effect of environment protection is achieved. There is no need to provide lubricating oil for lubrication through an externally-hung hydraulic circulation system, the energy consumption is lowered to a certain extent, and the effect of energy conservation is achieved. The spring is the wavy spring, the wavy spring is not likely to deform and cannot incline, and medium leakage is further avoided.

Description

technical field [0001] The invention relates to a pump body, in particular to a twin-screw pump. Background technique [0002] A pump is a machine that transports or pressurizes a liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. The pump is mainly used to transport liquids such as water, oil, acid and alkali liquid, emulsion, suspoemulsion and liquid metal, and can also transport liquid, gas mixture and liquid containing suspended solids. The screw pump is a positive displacement rotor pump, which relies on the volume change of the sealed cavity formed by the screw and the bushing to suck and discharge the liquid. Screw pumps are divided into single screw pumps, double, three and five screw pumps according to the number of screws. The characteristics of the screw pump are stable flow, small pressure pulsation, self-priming ability, low noise, high efficiency, long life, and reliable ...

Claims

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Application Information

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IPC IPC(8): F04C2/107F04C15/00
CPCF04C2/084F04C2/107F04C15/0023F04C15/0088
Inventor 张落成
Owner JIANGSU HONGSHENG PUMP TECH