Pressure and ultrahigh pressure generating method and device

Abstract

The invention is suitable for preparing artificial diamond, high pressure forming, plastic working, food processing under hyperpressure, autoclaving and machining etc. After procedure of phase change, volume of resultant of phase change is increased so as to extrude matter of phase change to produce pressure and hyperpressure. Pressure container is airtight. Starting and stopping phase change is controlled by phase change control device. The unit of generating pressure is composed of phase change control device, resultant of phase change, control valve, connection pipe, matter of phase change and pressure container. The said unit can be connected in cascaded, parallel and mixed connection modes. Advantages are: no pulsant pressure, long holdup time, transferable to other energy form to make work to outside.

Description

technical field [0001] The invention relates to a method and device for generating pressure and superhigh pressure, in particular to a method and device for generating fluid dynamic pressure and superhigh pressure. Background technique [0002] High-pressure and ultra-high-pressure equipment are widely used in the fields of artificial diamond preparation, high-pressure forming, plastic processing, ultra-high pressure food processing, high-pressure sterilization, mechanical processing, etc., and play a key role in some applications. [0003] At present, there are mainly the following methods for generating high pressure and ultra-high pressure: 1. The method based on hydraulic transmission; 2. The method based on explosive explosion; 3. The method based on electromechanical. [0004] The method based on hydraulic transmission is a main method for generating high and ultra-high pressure. It generates high-pressure fluid through a high-pressure pump, and then obtains high pres...

AI Technical Summary

Problems solved by technology

Devices based on hydraulic transmission methods can be made into pressure devices that generate high pressure, but devices that generate high-precision pressure are expensive, complicated to maintain, low in efficiency, and may cause oil pollution to the environment, high noise, and high heat; The device structure of the method is simple, and the manufacture is not too complicated, but limited by the strength of the material and the cost performance, the general pressure output will not be too large, and the tonnage of the press is limited; the primary pressure generation based on the explosive explosion method is simple, but the pressure is precisely controlled Difficult and limited in use occasions; electromagnetic presses have simple structure, low noise, but small pressure output, and are generally used for small-tonnage presses

[0009] Especially for the widely used ultra-high pressure devices based on hydraulic transmission methods, due to the uneven instantaneous flow rate of hydraulic pumps (gear pumps, vane pumps, plunger pumps, etc.), there is a certain amplitude of periodic pressure at the front end of the fluid power system. Pulsation, at the same time, together with a certain range of pressure fluctuations at the front end, after the pressure amplification process of the supercharger, a large pressure fluctuation will be formed at the end, the precise control of the pressure is difficult, and the error is large

Invisibly, the front-end pressure control precision is required to be high, the cost of equipment increases, and the effect is difficult to achieve

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