Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for reducing noise and cavitation in machines and pressure exchangers which pressurize or depressurize fluids by means of displacement principle

A pressure exchanger, principle technology, applied in the direction of fluid pressure converter, fluid pressure actuation device, fluid pressure actuation system components, etc., can solve the problems of unacceptable noise level and limited time.

Inactive Publication Date: 2012-11-07
ENERGY RECOVERY INC
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Many devices are known at present, which include hydraulic pumps, hydraulic valves, hydraulic actuators, hydraulic motors and pressure exchangers described in Norwegian Patent Nos. Noise levels become unacceptable when used at higher rotational frequencies or under pressure
In practice, the last-mentioned type of equipment is particularly susceptible to these operating conditions because of the extremely limited time for simultaneous completion of two processes within the same equipment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for reducing noise and cavitation in machines and pressure exchangers which pressurize or depressurize fluids by means of displacement principle
  • Method for reducing noise and cavitation in machines and pressure exchangers which pressurize or depressurize fluids by means of displacement principle
  • Method for reducing noise and cavitation in machines and pressure exchangers which pressurize or depressurize fluids by means of displacement principle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] figure 1 All major components of a symmetrical end cap with high pressure port 1 and low pressure port 2 are shown. Although the aperture angles are the same in the figures, this is not necessary and may be advantageous in combination with a different number of channels in the rotor. There are two sealing areas on the end cover, one is the decompression area 3 between the high pressure side and the low pressure side, and the other is the pressurized area 4. According to the fact that the rotor channels rotate clockwise, all the rotor channels will pass from the high pressure port 1 through the decompression zone 3 to the low pressure port 2, so as to pass through the pressurized zone 4 and enter the high pressure port 1 again. Furthermore, the decompression zone 3 has an inlet edge and an outlet edge 6 , and the pressurization zone 4 has an inlet edge 7 and an outlet edge 8 , respectively. The angular extent of the sealing areas 3 and 4 covers at least one complete ro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method for reducing noise and cavitation in machines and pressure exchangers which pressurize or depressurize fluids by means of the displacement principle, wherein at least one of the pressure exchanger's end covers is equipped with connecting channels (14, 17, 18) which substantially increase the inlet and outlet of flow medium in the rotor channels (15, 16) during residence in the depressurization zone (3) or the pressurization zone (4). The method comprises different embodiments such as, for example, a direct channel connection (14) between channel (16) and opposite channel (15).

Description

technical field [0001] The invention relates to a method for reducing noise and cavitation in devices operating on the principle of displacement. When the principle of displacement is used to pressurize a limited volume of liquid extremely quickly, noise will be accompanied by it, or when decompression is extremely fast, noise will also be generated, but the noise is greatly enhanced due to cavitation, and cavitation can also damage the structure and shorten the life of the equipment. Background technique [0002] Many devices are known at present, which include hydraulic pumps, hydraulic valves, hydraulic actuators, hydraulic motors and pressure exchangers described in Norwegian Patent Nos. Noise levels become unacceptable when used at higher rotational frequencies or under pressure. In practice, the last-mentioned type of equipment is particularly subject to these operating conditions, since the time in which both processes are to be carried out simultaneously within the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F04B1/20F15B3/00B01D61/06F04B11/00F04F13/00F04F99/00F15B21/047
CPCF15B21/047F04B11/00F04F13/00F15B21/008F04B1/2042
Inventor R·A·赫尔曼斯塔
Owner ENERGY RECOVERY INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com