Universal pipe sleeve junction for an aspirated smoke detection system

Patent metadata

Field	Value
Publication number	US-11543057-B2
Application number	US-201916506384-A
Country	US
Kind code	B2
Filing date	Jul 9, 2019
Priority date	Jul 9, 2019
Publication date	Jan 3, 2023
Grant date	Jan 3, 2023

Abstract

Methods, devices, and systems for a universal pipe sleeve junction for an aspirated smoke detection system are described herein. In some examples, one or more embodiments include a sleeve body having an outer surface and an inner surface, the inner surface defining an opening through the sleeve body, wherein the sleeve body further includes a first end surface and a second end surface opposite the first end surface, and a nozzle having an outer surface and an inner surface, the inner surface of the nozzle defining an opening through the nozzle and extending through to the inner surface of the sleeve body, where the nozzle opening is configured to couple with a pipe sleeve attachment mechanism.

First claim

What is claimed:

1. A universal pipe sleeve junction for an aspirated smoke detection system, comprising:
a sleeve body having an outer surface and an inner surface, the inner surface defining an opening through the sleeve body, wherein the sleeve body further includes:
a first end surface; and
a second end surface opposite the first end surface;

a nozzle having a cap surface, an outer surface, and an inner surface, the inner surface of the nozzle defining an opening from the cap surface through the nozzle and extending through to the inner surface of the sleeve body, the inner surface of the nozzle including a nozzle flange, wherein the nozzle flange is a semi-circular flange located circumferentially around the inner surface of the nozzle and projecting from the inner surface of the nozzle inwards towards the opening through the nozzle; and
a calibrated sampling point cap having a flange and an outer surface having a constant diameter, wherein:
the outer surface is configured to directly couple to the opening through the nozzle via an interference fit with the nozzle flange to create a seal between the inner surface of the nozzle and the outer surface of the calibrated sampling point cap, the calibrated sampling point cap having an annulus defining an opening through the calibrated sampling point cap such that a negative pressure inside the sleeve body is to cause gas located outside the universal pipe sleeve junction to flow through the annulus into the universal pipe sleeve junction for smoke testing; and
the flange abuts the cap surface when the outer surface of the calibrated sampling point cap is directly coupled to the opening, the flange having a diameter that is larger than the diameter of the outer surface of the calibrated sampling point cap.

2. The universal pipe sleeve junction of claim 1 , wherein the inner surface of the sleeve body includes a first portion having a first diameter and a second portion having a second diameter, wherein the first diameter is greater than the second diameter.

3. The universal pipe sleeve junction of claim 2 , wherein the opening through the nozzle extends through to the second portion of the inner surface of the sleeve body.

4. The universal pipe sleeve junction of claim 2 , wherein at least one of the first end surface and the second end surface is configured to couple with a pipe at the first portion of the inner surface of the sleeve body.

5. The universal pipe sleeve junction of claim 4 , wherein an inner diameter of the pipe is a same diameter as the second portion of the inner surface of the sleeve body.

6. The universal pipe sleeve junction of claim 1 , wherein the sleeve body further includes a plurality of flanges located on the inner surface of the sleeve body and configured to couple with a pipe.

7. The universal pipe sleeve junction of claim 6 , wherein two flanges of the plurality of flanges are located proximal to and axially spaced apart from the first end surface.

8. The universal pipe sleeve junction of claim 6 , wherein two flanges of the plurality of flanges are located proximal to and axially spaced apart from the second end surface.

9. The universal pipe sleeve junction of claim 1 , wherein at least one of the first end surface and the second end surface is configured to couple with a different pipe sleeve attachment mechanism.

10. A universal pipe sleeve junction for an aspirated smoke detection system, comprising:
a sleeve body having an outer surface and an inner surface, the inner surface defining an opening through the sleeve body, wherein the sleeve body further includes:
a first end surface;
a first flange on the inner surface and located proximal to the first end surface;
a second end surface opposite the first end surface; and
a flange on the inner surface and located proximal to the second end surface;

a nozzle integral with the sleeve body and having a cap surface, an outer surface, and an inner surface, the inner surface of the nozzle defining an opening from the cap surface through the nozzle and extending through to the inner surface of the sleeve body, the inner surface of the nozzle including a nozzle flange, wherein the nozzle flange is a semi-circular flange located circumferentially around the inner surface of the nozzle and projecting from the inner surface of the nozzle inwards towards the opening through the nozzle; and
a calibrated sampling point cap having a flange and an outer surface having a constant diameter, wherein:
the outer surface is configured to directly couple to the opening through the nozzle via an interference fit with the nozzle flange to create a seal between the inner surface of the nozzle and the outer surface of the calibrated sampling point cap, the calibrated sampling point cap having an annulus defining an opening through the calibrated sampling point cap such that a negative pressure inside the sleeve body is to cause gas located outside the universal pipe sleeve junction to flow through the annulus into the universal pipe sleeve junction for smoke testing; and
the flange abuts the cap surface when the outer surface of the calibrated sampling point cap is directly coupled to the opening, the flange having a diameter that is larger than the diameter of the outer surface of the calibrated sampling point cap.

11. The universal pipe sleeve junction of claim 10 , wherein the nozzle flange is located proximal to the cap surface of the nozzle.

12. A universal pipe sleeve junction system for an aspirated smoke detection system, comprising:
a universal pipe sleeve junction comprising:
a sleeve body having an outer surface and an inner surface, the inner surface defining an opening through the sleeve body, wherein the sleeve body further includes:
a first end surface;
a first flange on the inner surface of the sleeve body and located proximal to the first end surface;
a second end surface opposite the first end surface; and
a second flange on the inner surface of the sleeve body and located proximal to the second end surface;

a nozzle integral with the sleeve body and having a cap surface, an outer surface, and an inner surface, the inner surface of the nozzle defining an opening from the cap surface through the nozzle and extending through to the inner surface of the sleeve body, the inner surface of the nozzle including a nozzle flange, wherein the nozzle flange is a semi-circular flange located circumferentially around the inner surface of the nozzle and projecting from the inner surface of the nozzle inwards towards the opening through the nozzle; and

a calibrated sampling point cap having a flange and an outer surface having a constant diameter, wherein:
the outer surface is configured to directly couple to the opening through the nozzle via an interference fit with the nozzle flange to create a seal between the inner surface of the nozzle and the outer surface of the calibrated sampling point cap, the calibrated sampling point cap having an annulus defining an opening through the calibrated sampling point cap such that a negative pressure inside the sleeve body is to cause gas located outside the universal pipe sleeve junction to flow through the annulus into the universal pipe sleeve junction for smoke testing; and
the flange abuts the cap surface when the outer surface of the calibrated sampling point cap is directly coupled to the opening, the flange having a diameter that is larger than the diameter of the outer surface of the calibrated sampling point cap.

13. The system of claim 12 , wherein the system includes a line end cap coupled to the second end surface.

14. The system of claim 13 , whe

Assignees

• Honeywell Int Inc

Inventors

• Miheli Mauro
• Feurra Lorenzo
• Pace Gianluca

Classifications

• F16L55/11

  Plugs {(F16L55/128 takes precedence)} · CPC title

• F16L41/021 Primary

  T- or cross-pieces (F16L41/025, F16L41/026, F16L41/028 take precedence) · CPC title

• G08B17/10

  Actuation by presence of smoke or gases {, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means} · CPC title

• F16L21/002 Primary

  Sleeves or nipples for pipes of the same diameter; Reduction pieces (F16L27/00, F16L37/00 take precedence; with elastic sealing rings F16L21/022) · CPC title

• G08B17/00

  Fire alarms; Alarms responsive to explosion · CPC title