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Methods for sealing, detection and marking leaks in structural enclosures

一种围护体、漏缝的技术，应用在远程密封工艺领域，能够解决不能明显影响烟气、时间和劳动力成本高、空气流动慢等问题

Active Publication Date: 2016-11-16
RGT UNIV OF CALIFORNIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this way of identifying air leaks in structures can make it difficult to identify small cracks or gaps in seams or joints where air flow is too slow to significantly affect smoke, and is time and labor costly. high
[0012] There are many other enclosures that have similar problems with locating and sealing small leaks

Method used

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  • Methods for sealing, detection and marking leaks in structural enclosures
  • Methods for sealing, detection and marking leaks in structural enclosures
  • Methods for sealing, detection and marking leaks in structural enclosures

Examples

Experimental program
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Effect test

example 1

[0069] To illustrate the principle of operation of the device and sealing method, an enclosure measuring 8 feet by 8 feet by 4 feet (2.4m by 2.4m by 1.2m) was constructed for experimental testing with 12 inch by 12 inch (30 cm by 30 cm) leak panels in various locations on the shell. The approximate size of each slat in the panel is 0.1 to 0.12 inches x 10 inches x 0.125 inches (2.5 to 3mm x 25cm x 3mm) (H x W x D) and there are 6 leaks on each slatted panel seam. The height and width (0.125 to 0.12 inches (2.5 to 3 mm)) of each leak is meant to represent a typical crack in the building envelope, but the depth (0.125 inches (3 mm)) is deeper than expected to be found in a building The depth is much shorter. The total measured leakage of all panels is approximately 41 square inches (260cm 2 ) of the open drain area. A 14 inch (36 cm) diameter hole was also used as an injection site to introduce sealant fumes near the top of the enclosure.

[0070] The performance of the rem...

example 2

[0082] To further demonstrate the principle of operation of the device and sealing method, field tests were carried out during the drywall phase of construction and on empty existing dwellings. Based on laboratory and field test results, aerosol particles can be used to seal leaks in building envelopes.

[0083] Initial full-scale experiments with aerosol-based sealing techniques were conducted using existing aerosol catheter sealing techniques and tested in the laboratory experiments described in Example 1. Subsequent full-scale tests use multiple aerosol injection points with airless atomization and compressed air or fans to disperse sealant fumes into the structure. However, no carrier gas is required.

[0084] Access points in the room to be tested, such as windows, doors, and nozzles, are protected with substantially air-tight barriers such as tape or plastic sheets so that a pressure differential can be created in the structure and the access points are not sealed durin...

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PUM

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Abstract

A system and method for detecting, marking and / or sealing building envelope leaks in buildings or any enclosed structure. Fogs of aerosolized sealant particles that have a surface tackiness that diminishes over time are introduced into the interior of prepared rooms. The surface properties of the aerosol particles can be controlled with the selection of sealant composition, including the presence and concentration of solvents, the range of produced particle sizes, and the relative humidity and temperature within the enclosure. A pressure differential is created and the micron scale particles adhere to the leak edges and to other particles as they are brought to the leaks and then leave the gas streamlines. Control of particle size, drying rate and particle residence time in the building interior allows control over the treatment area so that leaks are sealed without leaving a tacky residue.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit to US Provisional Patent Application Serial No. 61 / 971,101 filed March 27, 2014, the entire contents of which are hereby incorporated by reference. This application claims priority to and benefit of US Provisional Patent Application Serial No. 62 / 080,961 filed November 17, 2014, the entire contents of which are hereby incorporated by reference. [0003] Statement Regarding Federally Sponsored Research or Development [0004] This invention was made with US Department of Energy government support No. KNDJ-0-40343-00, which has certain rights in this invention. [0005] INCORPORATION BY REFERENCE TO COMPUTER PROGRAM APPENDIX [0006] Not applicable technical field [0007] The present technology relates generally to apparatus and methods for sealing an enclosure, and more particularly to a cost-effective remote sealing process that utilizes atomized sealant particles to simul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/22
CPCE04B1/66B05B7/14F16J15/02
Inventor 马克·莫德柯蒂斯·哈林顿纳尔逊·迪希特
Owner RGT UNIV OF CALIFORNIA
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