A Distributed Binary Nozzle Ejector Device

A binary nozzle and ejector technology, which is applied in jet pumps, non-displacement pumps, machines/engines, etc., can solve the problems of long mixing section, low ejection efficiency, and poor uniformity of mixed fluid, and reduce the Installation space requirements, improved ejection efficiency, and the effect of high ejection efficiency

Active Publication Date: 2022-04-26
INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The annular seam ejector is a relatively classic ejector, but the traditional annular seam ejector has the following disadvantages: first, the energy and material exchange area between the high-energy fluid and the low-energy fluid is not large, and the ejection efficiency is low; second, the high-energy fluid The mixing speed with low-energy fluid is slow, the required mixing section is long, and the uniformity of the mixed fluid is poor; the third is that the ejector has a large size, expensive manufacturing and processing costs, and complex space installation requirements

Method used

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  • A Distributed Binary Nozzle Ejector Device
  • A Distributed Binary Nozzle Ejector Device

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Experimental program
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Embodiment 1

[0037] The number of nozzle units in this embodiment is 8, and each nozzle unit is provided with a binary and a half nozzle, with 4 nozzle units in the upper half and 4 other nozzle units symmetrically distributed in the lower half , the four nozzle units in the upper half are connected and supported by a hollow reinforcing rib that penetrates up and down on the symmetry line, and the four nozzle units in the lower half are respectively connected and supported by the symmetry line Another symmetrical hollow-type reinforcing rib that penetrates up and down on the top is connected and supported; the binary nozzle ejector 3 is also provided with an annular channel that communicates with each nozzle unit body, and the high-energy fluid flows from the high-energy fluid inlet section 2 After the through hole enters the annular channel, it is sprayed out from the outlet of the nozzle unit body.

[0038]Numerical simulation results show that, compared with the traditional annular seam...

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Abstract

The invention discloses a distributed binary nozzle ejector device. The device adopts a pipeline connection method, which includes sequentially connected low-energy fluid inlet section, high-energy fluid inlet section and mixed fluid outlet section; the binary nozzle ejector is installed in the pipeline near the high-energy fluid inlet section; the surface of the high-energy fluid inlet section The through hole is connected with the external high-pressure tank; the low-energy fluid inlet section, the high-energy fluid inlet section and the mixed fluid outlet section are concentric; the binary nozzle ejector includes linear nozzle units arranged in parallel, and the nozzle The unit bodies are connected by reinforcing ribs, some of which are hollow structures, and the high-energy fluid enters the nozzle unit body from the through hole of the high-energy fluid inlet section and sprays out from its outlet; the nozzle unit body is provided with a nozzle. The device is suitable for fluid ejection control of gas and liquid. The device improves the ejection efficiency, reduces the external dimension of the ejector device, and reduces the space installation requirement of the ejector device.

Description

technical field [0001] The invention belongs to the technical field of flow control, and in particular relates to a distributed binary nozzle ejector device. Background technique [0002] Fluid is a general term for gas and liquid. Most fluids, such as oil, water and air, are indispensable substances for people's life, production and scientific research. The flow speed of the fluid varies from fast to slow, and people often hope to inject low-energy fluid through high-energy fluid to increase the velocity of low-energy fluid and increase the flow rate of low-energy fluid. [0003] In general life and production activities, people do not have high requirements for the flow speed of fluids, such as tap water, gas stations, gas stations, heating and natural gas, etc., only need a certain flow speed and flow rate to meet the requirements. However, in scientific research, people often need to efficiently eject low-energy fluids through high-energy fluids. In power plants, fuel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04F5/46F04F5/00
CPCF04F5/46F04F5/463F04F5/00
Inventor 李方吉樊建超赵清张林贾霜蒋鸿高荣钊于志松郭民滕达
Owner INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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