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Testing of aspirating systems

A technology of aspirator and air, which is applied to fire alarms, fire alarms, instruments, etc. that rely on smoke/gas effects, and can solve the problems of prominent pipeline layout, high cost of pipeline layout and installation, and undesired aesthetic results. , to ensure consistency, save money, and ensure integrity

Inactive Publication Date: 2011-04-06
NO CLIMB PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only leads to additional costs (pipework installation costs are substantial), but also to unnecessary prominence of the pipework with undesired aesthetic consequences

Method used

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  • Testing of aspirating systems
  • Testing of aspirating systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Aspirating systems are commonly used in areas requiring protection and monitoring, for the detection of smoke or any type of product that indicates the presence of a hazard such as fire, although it should be recognized that its potential application is much wider. In the following, the description will refer to soot as the product to be detected. The area comprises a tube network with a series of interconnected tubes leading to a detector at the hub of the network.

[0039] figure 1 The suction system 1 and parts of the pipes for the suction system are shown. The distal pipe segment 1a shows the part of the pipe at one end of the pipe network, which part is within the area to be monitored. The proximal tube section 1 b shows the part of the tube closest to the smoke detector 3 for detecting the presence of smoke. Although not shown, it should be appreciated that sections 1a and 1b are connected via a further pipe section.

[0040] Pipe section 1a has a sampling poi...

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PUM

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Abstract

An aspirating system for detecting the presence of a product representative of a hazard and a method of detecting the presence of a product representative of a hazard in an aspirating system are provided. The system comprises: piping that includes a plurality of apertures spaced apart along the length of the piping; an aspirator for drawing air from outside the piping into the piping through at least one aperture, a detector coupled to the piping for detecting the presence of a product representative of a hazard; a generator of test stimulus for generating the product representative of a hazard; wherein the test stimulus generator is fixed in, near, or on the piping such that in use a test stimulus is provided adjacent to at least one aperture of the piping. A control means can be provided to control the activation of the test stimulus from the generator and the time taken for the test stimulus to reach the detector can be measured.

Description

technical field [0001] The present invention relates to inhalation detection systems and, in particular, to devices for testing such systems. Background technique [0002] An aspirating detection system is one in which air and particulates representing hazards are drawn through one or more sampling points by an integrated pump, fan or aspirator into a tube for delivery to one or more detectors or sensors system. Currently, the most common use of these systems is for the detection of smoke, and such systems are referred to as aspirated smoke detection systems - although the application of aspirated detection systems (ADS) can of course be used for other hazards. [0003] Aspirating systems often incorporate smoke sensors with higher sensitivity than those used for more conventional 'spot-type' smoke detection, and can be designed to respond to lower levels of combustion products than alternative forms of detection. Likewise, their use is known in fire warning or as enhanced...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B29/14G08B17/00G08B17/10
CPCG08B29/14G08B17/10G08B17/113
Inventor W·J·罗西特
Owner NO CLIMB PRODS
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