Underground tall and large space building ventilation model test bed design method in top air supply mode

A technology of ventilation model and tall space, which can be used in aerodynamic experiments, teaching models, and testing of machine/structural components, etc.

Inactive Publication Date: 2020-12-18
TIANJIN UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Large-scale hydroelectric generating units and electromechanical equipment are installed in the main workshop to meet the demand for power generation. The heat dissipation and humidity of the equipment are large. In addition, the air circulation in the underground workshop of the deep-buried hydropower station is poor, hot and humid.

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
  • Underground tall and large space building ventilation model test bed design method in top air supply mode
  • Underground tall and large space building ventilation model test bed design method in top air supply mode
  • Underground tall and large space building ventilation model test bed design method in top air supply mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] At the beginning of the experiment, turn on the cold source system, control the air volume and temperature of the air supply to meet the design requirements, make the wind speed as uniform as possible to achieve uniform air supply, and turn on the heat source at the same time, run for a period of time, and wait for the speed and temperature parameters inside the test bench to stabilize Afterwards, turn on the pilot test system and test its parameters. Read the test parameters, post-process the data, and analyze the results.

[0036] Such as Figure 1-10 As shown, the design main structure layout of the model test bench of the main factory building and the internal heat source layout diagram of the model test bench of the main factory building. Based on the fact that the Archimedes number and the heat Archimedes number of the prototype and the m...

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

The invention discloses an underground tall and large space building ventilation model test bed design method in a top air supply mode, and the method comprises the following steps: building a proportional model test bed based on the same Archimedes number and heat Archimedes number of a prototype and a model, and carrying out the testing, verification and optimization according to a designed ventilation scheme; respectively measuring the speed difference and the temperature field of the working areas of the generator layer, the bus layer, the water turbine layer and the volute layer, checkingwhether the working areas meet the standard requirements or not, and verifying the design scheme. Designing an experiment by using an orthogonal method, changing the air supply volume and the position and number of arch crown air supply outlets, and optimizing the design scheme; on the premise that the optimal wind speed of a generator layer working area is guaranteed, determining the minimum total ventilation amount needed by a main workshop through a scaling model test, and determining the form, the number, the wind speed and the optimal wind opening arrangement position of wind openings.

Description

technical field [0001] The invention relates to the field of underground building environment engineering, in particular to a design method for a ventilation model test bench of an underground high and large space building under the top air supply mode. Background technique [0002] The main plant is an important part of the pumped storage power station. The main plant is located underground, and the electromechanical equipment in the plant is huge. Generally, the main powerhouse is divided into five floors, generator floor, busbar floor, water turbine floor, volute floor and draft tube floor. Large-scale hydroelectric generating units and electromechanical equipment are installed in the main plant to meet power generation needs. The equipment has a large amount of heat dissipation and moisture dissipation. In addition, the air circulation in the underground plant of the deep-buried hydropower station is poor, hot and humid. In order to improve the working environment in th...

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 Applications(China)
IPC IPC(8): G01M9/08G01M9/06G05D27/02G01D21/02G09B25/04
CPCG01M9/08G01M9/06G05D27/02G01D21/02G09B25/04
Inventor 沈雄张博悦
Owner TIANJIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap