Multilevel inner series dual supercharging double-circular-arc gear pump

Abstract

The invention provides a multistage internal serial dual pressurizing double-circular-arc gear pump which is a graduate innovation and turns the prior interstage external serial pressurizing into interstage serial pressurizing with the renovated pump still having gradual thinning of tooth thickness and dual pressurizing. After internal serial pressurizing, the prior interstage separating plate has a new function and acts as an internal channel; the outside of a pump casing is provided with a cooling water jacket; both ends of a hole arranged inside the casing are provided with end plates used in a bearing seat; a supporting axle is in mesh transmission with a multistage double-circular-arc gear pair arranged on the axle; because no external bearing seat is adopted, the overall structure of the invention is simplified. Moreover, two parallel shafts are formed into an assembly; a shaft seat plate, a multistage gear pair and a serial clapboard, etc. are assembled into a big component in advance; then, the component is moved inside the inner hole of the pump casing, thereby realizing convenient assembly and disassembly. The gear pump has the advantages that: the inner hole is taken as installation benchmark, which ensures high installation precision and is suitable for high-speed operation; the positive displacement pump has high efficiency and is energy-saving; dual pressurizing is obtained through multistate series connection and tooth thickness gradual thinning; mass flow is obtained through small tooth number, big module and high speed; the gear pump, which has a simple structure, high reliability, excellent manufacturability, easy manufacture and no gear grinding of a gear, can be made by an ordinary machine making factory. The pump can be used to convey liquid, gas and high-temperature medium with certain corrosivity; moreover, the pump has excellent self-priming performance and is insensitive to pollution.

Description

1. Technical field [0001] The present invention relates to providing a multi-stage internal series supercharging, coupled with step-by-step thinning of the tooth thickness and then supercharging—that is, a double supercharging double-arc gear high-pressure and large-flow pump structure, which is especially suitable for gas compression and high-temperature tools. Transport of certain corrosive liquids. 2. Background technology [0002] In industrial production, "people regard the pump as the heart of the industry", which consumes a lot of power, so "high efficiency and high power" (that is, high pressure and large flow), high-speed rotation instead of reciprocation, simple and reliable, long service life, is a domestic and foreign The common pursuit of the pump industry. [0003] 2.1 This is a progressive innovation of my "multi-stage double-arc gear high-pressure large-flow pump", patent application number 2007100894328. The pump used to adopt "multi-stage external series ...

AI Technical Summary

Problems solved by technology

Because the centrifugal pump relies on the kinetic energy of the impeller to increase the pressure of the fluid, so the above-mentioned cubic function increases sharply, resulting in a large power consumption at high speed, while the positive displacement pump relies on volume compression, obviously the principle is completely different, and this pump can achieve high efficiency and energy saving. reason

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