CN105718631A - Numerical value simulation-based ventilation duct smoke purification system - Google Patents
Numerical value simulation-based ventilation duct smoke purification system Download PDFInfo
- Publication number
- CN105718631A CN105718631A CN201610022525.4A CN201610022525A CN105718631A CN 105718631 A CN105718631 A CN 105718631A CN 201610022525 A CN201610022525 A CN 201610022525A CN 105718631 A CN105718631 A CN 105718631A
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- ventilation duct
- ventilation shaft
- simulation
- air volume
- air quantity
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/14—Pipes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Ventilation (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a numerical value simulation-based ventilation duct smoke purification system. The system comprises a ventilation duct, a dust collector, a fan and a smoke pipe, wherein the ventilation duct is prepared through a method comprising the following steps: 1) preliminarily designing the ventilation duct, establishing a geometric model according to the structural size of the ventilation duct, and carrying out grid division on a calculation area by utilizing software; 2) setting a pressure inlet boundary condition for dust absorption points of the ventilation duct and a pressure outlet boundary condition for an outlet of the ventilation duct, simulating the flowing of airflow in the ventilation duct by utilizing simulation software so as to obtain the simulated air volume of each dust absorption point, and obtaining an air volume deviation result between a designed air volume and the simulated air volumes; and 3) analyzing the result, adjusting the duct, and adjusting the air volume imbalance through adjusting the diameter of the duct or adding a throttling pipe. The system provided by the invention has the following technical effects of being conducive to saving the engineering commissioning cost, shortening the erection time, adjusting and improving the ventilation duct and improving the air volume balance of the ventilation duct.
Description
Technical field
The present invention relates to a kind of ventilation shaft flue gas purification system based on numerical simulation, belong to technical field of environment protection equipment.
Background technology
Ventilation shaft is air grid optimization metal or the nonmetal pipeline of industry and civil buildings, is to ventilate, and reduces a kind of civilian infrastructure of harmful gas concentration.Being mainly used in industry and architectural engineering, application relates generally to: the comfortable ajutages in exhaust duct, industrial environment or post, the coal bed methane extraction system that draws out methane, coal mine environmental Kuznets Curves return air blowing system etc. such as electronics industry dustless factory building cleaning system, medicine food sterile workshop cleaning system, hotel, market hospital, factory and the central air conditioner system of office building, industrial pollution control dedusting, smoke evacuation, oil suction.
For complicated cleaning system, the air balance of each ventilation shaft is directly connected to the properly functioning of whole system.Some ventilation shaft has tens even up to a hundred dust sucting points, it is necessary to carry out pressure balance calculating, namely requires that the pressure of the ventilation shaft of actual motion is consistent with design load, and each arm air quantity difference is little.If pressure imbalance, in actual moving process, the air quantity of blower fan distributes voluntarily according to the pressure of each arm, can cause that the dust sucting point air quantity having is too little, it is impossible to play dust removing effects；Some dust sucting point air quantity too senior general's material siphons away；In some pipelines, wind speed is too low, dust blocking pipeline；In some pipelines, wind speed is too high, and pipe wear aggravates.
Numerical simulation is also named computer simulation, relies on electronic computer, in conjunction with the concept of finite element or finite volume, by the method that numerical computations and image show, reaches the purpose to engineering problem and physical problem or even all kinds of Study on Problems of nature.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art part, it is provided that a kind of ventilation shaft flue gas purification system based on numerical simulation.
The ventilation shaft flue gas purification system based on numerical simulation of the present invention, including ventilation shaft, cleaner unit, blower fan and chimney, described ventilation shaft is made by the following method:
1) Preliminary design goes out ventilation shaft, the physical dimension according to ventilation shaft, sets up geometric model, utilizes software that zoning is carried out stress and strain model；
2) the pressure entrance boundary condition of ventilation shaft dust sucting point and the pressure export boundary condition of ventilation shaft outlet are set, utilize simulation software simulation air current flow within ventilation shaft, obtain the simulation air quantity of each dust sucting point, obtain design air flow and the air quantity difference result of simulation air quantity；
3) analyze result, adjust ventilation shaft, by regulating pipe diameter or increasing throttle pipe, regulate air quantity unbalance factor.
The ventilation shaft flue gas purification system based on numerical simulation of the present invention, has the following technical effect that and contributes to saving engineering debugging cost, reduction of erection time, additionally aid adjustment and the improvement of ventilation shaft, improve the air balance rate of ventilation shaft.
Detailed description of the invention
Embodiment 1
The ventilation shaft flue gas purification system based on numerical simulation of the present invention, including ventilation shaft, cleaner unit, blower fan and chimney, described ventilation shaft is made by the following method:
1) Preliminary design goes out ventilation shaft, the physical dimension according to ventilation shaft, sets up geometric model, utilizes software that zoning is carried out stress and strain model；
2) the pressure entrance boundary condition of ventilation shaft dust sucting point and the pressure export boundary condition of ventilation shaft outlet are set, utilize simulation software simulation air current flow within ventilation shaft, obtain the simulation air quantity of each dust sucting point, obtain design air flow and the air quantity difference result of simulation air quantity；
3) analyze result, adjust ventilation shaft, by regulating pipe diameter or increasing throttle pipe, regulate air quantity unbalance factor.
Claims (1)
1. the ventilation shaft flue gas purification system based on numerical simulation, it is characterised in that including ventilation shaft, cleaner unit, blower fan and chimney, described ventilation shaft is made by the following method:
1) Preliminary design goes out ventilation shaft, the physical dimension according to ventilation shaft, sets up geometric model, utilizes software that zoning is carried out stress and strain model；
2) the pressure entrance boundary condition of ventilation shaft dust sucting point and the pressure export boundary condition of ventilation shaft outlet are set, utilize simulation software simulation air current flow within ventilation shaft, obtain the simulation air quantity of each dust sucting point, obtain design air flow and the air quantity difference result of simulation air quantity；
3) analyze result, adjust ventilation shaft, by regulating pipe diameter or increasing throttle pipe, regulate air quantity unbalance factor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610022525.4A CN105718631A (en) | 2016-01-14 | 2016-01-14 | Numerical value simulation-based ventilation duct smoke purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610022525.4A CN105718631A (en) | 2016-01-14 | 2016-01-14 | Numerical value simulation-based ventilation duct smoke purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105718631A true CN105718631A (en) | 2016-06-29 |
Family
ID=56147880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610022525.4A Pending CN105718631A (en) | 2016-01-14 | 2016-01-14 | Numerical value simulation-based ventilation duct smoke purification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105718631A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940743A (en) * | 2017-03-10 | 2017-07-11 | 中广核工程有限公司 | A kind of ventilation shaft mechanical analyzing method and system |
| CN109766612A (en) * | 2018-12-29 | 2019-05-17 | 北京新能源汽车股份有限公司 | Air conditioner air pipe pressure loss optimization method, device and platform of electric automobile |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185610A (en) * | 2011-12-30 | 2013-07-03 | 鞍钢集团工程技术有限公司 | Dust removing system pipe network resistance balance evaluation and debugging method |
| CN104265349A (en) * | 2014-08-07 | 2015-01-07 | 玉溪矿业有限公司 | Mine ventilation system building method based on DIMINE software |
-
2016
- 2016-01-14 CN CN201610022525.4A patent/CN105718631A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185610A (en) * | 2011-12-30 | 2013-07-03 | 鞍钢集团工程技术有限公司 | Dust removing system pipe network resistance balance evaluation and debugging method |
| CN104265349A (en) * | 2014-08-07 | 2015-01-07 | 玉溪矿业有限公司 | Mine ventilation system building method based on DIMINE software |
Non-Patent Citations (1)
| Title |
|---|
| 赵坤 等: ""工业烟气净化系统的风量平衡调节及数值模拟应用研究"", 《环境污染与防治》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940743A (en) * | 2017-03-10 | 2017-07-11 | 中广核工程有限公司 | A kind of ventilation shaft mechanical analyzing method and system |
| CN106940743B (en) * | 2017-03-10 | 2020-08-11 | 中广核工程有限公司 | Ventilating duct mechanical analysis method and system |
| CN109766612A (en) * | 2018-12-29 | 2019-05-17 | 北京新能源汽车股份有限公司 | Air conditioner air pipe pressure loss optimization method, device and platform of electric automobile |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160629 |