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

Anti-dump hood for ventilation and exhaust

An anti-backflow and hood technology, applied in vertical pipelines, building components, buildings, etc., can solve problems such as backflow, achieve high exhaust capacity, reduce backflow, and improve exhaust capacity.

Active Publication Date: 2016-04-06
北京金盾华通科技有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such an anti-backflow hood can still cause backflow in some cases

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
  • Anti-dump hood for ventilation and exhaust
  • Anti-dump hood for ventilation and exhaust
  • Anti-dump hood for ventilation and exhaust

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Some embodiments of the present invention will be further introduced below in conjunction with the accompanying drawings, but it is not intended to limit the protection scope of the present invention.

[0034] refer to Figure 1 to Figure 3 According to an embodiment of the present invention, the anti-backflow hood includes: a main exhaust pipe 4 and four branch exhaust pipes 1, wherein the four branch exhaust pipes 1 are evenly distributed around the main exhaust pipe. The main exhaust duct 4 has a top cover 8 and an opening 2 is arranged on the upper part of the main exhaust duct 4 . The branch exhaust pipe 1 is connected to the main exhaust pipe 4 at the opening 2 and is in fluid communication. The branch exhaust duct 1 intersects with the main exhaust duct 4 at the opening 2 to form a first section, the upper part of the first section is the opening 2, and the lower part is the side wall 3 of the main exhaust duct.

[0035] see Figure 4, the wind discharged from...

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 relates to a backflow-preventive cap which comprises a main exhaust pipe and branch exhaust pipes. The main exhaust pipe is provided with a top cover, the branch exhaust pipes are connected with upper openings of the main exhaust pipe, are communicated with the main exhaust pipe via liquid and downwardly and obliquely extend along the radial direction of the main exhaust pipe, and the side walls of the main exhaust pipe upwardly extend at the openings to stretch into the branch exhaust pipes. The backflow-preventive cap with the structure has the advantages of simple and compact structure, easiness in machining, high exhaust capacity and excellent backflow-preventive performance.

Description

technical field [0001] The invention relates to an anti-backflow hood for ventilation and exhaust, in particular to an anti-backflow hood for ventilation and exhaust of residential or commercial buildings. Background technique [0002] Buildings that are used as residential or commercial buildings are usually equipped with wind caps at the top air outlets of the ventilation and exhaust passages. The previous wind caps are generally composed of elbows or small conical caps on the top of the exhaust pipe. The shortcoming of such hood is that it is greatly affected by wind force and wind direction, and often there will be unsmooth sewage discharge or backflow phenomenon when the wind force is high. Moreover, rainwater often enters the exhaust pipe when it rains. [0003] Chinese patent application CN101962993A discloses an anti-backflow hood, which includes a main exhaust duct and four branch exhaust ducts protruding outwards uniformly arranged on the top of the exhaust duct. ...

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): E04F17/04E04F17/02
Inventor 张金昌
Owner 北京金盾华通科技有限公司
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