Fire protection nozzle, fire protection sprinkler, fire protection systems, and methods of manufacturing a fire protection nozzle and a fire protection sprinkler

Patent metadata

Field	Value
Publication number	US-10898746-B2
Application number	US-201716333964-A
Country	US
Kind code	B2
Filing date	Sep 15, 2017
Priority date	Sep 16, 2016
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

A fire protection nozzle includes a body having two frame arms having proximal ends connected to an outlet of the body, and distal ends, the two frame arms defining a frame arm plane, and a junction formed by the distal ends of the frame arms, the junction including a central bore and a cylindrical outer wall. A circular deflector is mounted to the body, and includes a planar disk having a mounting hole in a center of the planar disk to receive the cylindrical outer wall of the junction, and a plurality of slots on a periphery of the circular planar disk. The plurality of slots includes four radial first slots, four radial second slots, eight radial third slots, and eight fourth slots. The nozzle has a K-factor of at least 28 gpm/(psi)1/2.

First claim

I claim:

1. A fire protection nozzle for providing fire protection in a tunnel, the nozzle comprising:
(A) a body comprising:
(a) an inlet orifice;
(b) an outlet orifice, the inlet orifice and the outlet orifice defining a body axis and a flow passage for a fluid that flows through the body in an output direction;
(c) two frame arms having proximal ends connected to the outlet orifice and distal ends, the two frame arms defining a frame arm plane;
(d) a junction formed by the distal ends of the frame arms at a distance from the outlet orifice, the junction including a central bore and a cylindrical outer wall; and
(e) at least two body deflectors that extend from each of the two frame arms in the frame arm plane at an angle relative to the body axis, each of the at least two body deflectors having an inner planar surface that faces the junction, the inner planar surface having a depth in the frame arm plane and a width, perpendicular to the depth; and

(B) a circular deflector configured to be mounted to the body of the nozzle, the circular deflector comprising a planar disk having:
(a) a mounting hole in a center of the planar disk, the mounting hole configured to receive the cylindrical outer wall of the junction;
(b) a plurality of slots on a periphery of the circular planar disk that define a plurality of tines, the plurality of slots including:
(i) four radial first slots each having a first slot axis that is at an angle of about 45° relative to the frame arm plane, and at an angle of about 90° relative to an adjacent first slot, each of the first slots having a first slot depth;
(ii) four radial second slots each having a second slot axis that is at an angle of about 0° or 90° relative to the frame arm plane, and at an angle of about 90° relative to an adjacent second slot, each of the second slots having a second slot depth that is less than the first slot depth;
(iii) eight radial third slots each being adjacent to a second slot, and each having a third slot axis that is less than about 45° relative to the second slot axis of the adjacent second slot, each of the third slots having a third slot depth that is less than the second slot depth; and
(iv) eight fourth slots each being adjacent to a first slot, and each having a first slot portion having a radial axis, and a second slot portion, extending outward from the first slot portion relative to a center of the planar disk, the second slot portion having a non-radial axis, and a width that increases from an inner end of the second slot portion toward an outer, peripheral end of the second slot portion, and each of the fourth slots having a fourth slot depth that is less than the first slot depth;

(c) an upper surface that faces the outlet orifice; and
(d) a lower surface that is opposite to the upper surface along the body axis.

2. The fire protection nozzle according to claim 1 , wherein the circular deflector is secured to the junction by rolling the cylindrical outer wall of the junction over an edge of the mounting hole on the lower surface of the circular deflector.

3. The fire protection nozzle according to claim 1 , wherein the central bore of the junction has a threaded surface, and
wherein the circular deflector is secured to the junction by a securing portion that includes:
(i) a securing screw having a head and a threaded portion that contacts the threaded surface of the central bore of the junction; and
(ii) a retaining nut that is mounted to the securing screw.

4. The fire protection nozzle according to claim 1 , wherein the body deflectors extend in the frame arm plane at an angle of about 10° to about 80° from the body axis.

5. The fire protection nozzle according to claim 4 , wherein the width of the inner planar surface of the body deflectors is about 0.3 to about 1.2 times the diameter of the circular deflector.

6. The fire protection nozzle according to claim 4 , wherein the body deflectors extend in the frame arm plane at an angle of about 45° from the body axis.

7. The fire protection nozzle according to claim 1 , wherein the nozzle has a K-factor of at least 28 gpm/(psi) 1/2 .

8. A fire protection system for providing fire protection in a tunnel, the system comprising:
(A) a fluid supply for supply of a fluid;
(B) piping connected to the fluid supply;
(C) a plurality of fire protection nozzles, each nozzle being connected to the piping, and each nozzle comprising:
(a) a body comprising:
(i) an inlet orifice;
(ii) an outlet orifice, the inlet orifice and the outlet orifice defining a body axis and a flow passage for a fluid that flows through the body in an output direction;
(iii) two frame arms having proximal ends connected to the outlet orifice and distal ends, the two frame arms defining a frame arm plane;
(iv) a junction formed by the distal ends of the frame arms at a distance from the outlet orifice, the junction including a central bore and a cylindrical outer wall; and
(v) at least two body deflectors that extend from each of the two frame arms in the frame arm plane at an angle relative to the body axis, each of the at least two body deflectors having an inner planar surface that faces the junction, the inner planar surface having a depth in the frame arm plane and a width, perpendicular to the depth; and

(b) a circular deflector configured to be mounted to the body of the nozzle, the circular deflector comprising a planar disk having:
(i) a mounting hole in a center of the planar disk, the mounting hole configured to receive the cylindrical outer wall of the junction;
(ii) a plurality of slots on a periphery of the circular planar disk that define a plurality of tines, the plurality of slots including:
(1) four radial first slots each having a first slot axis that is at an angle of about 45° relative to the frame arm plane, and at an angle of about 90° relative to an adjacent first slot, each of the first slots having a first slot depth;
(2) four radial second slots each having a second slot axis that is at an angle of about 0° or about 90° relative to the frame arm plane, and at an angle of about 90° relative to an adjacent second slot, each of the second slots having a second slot depth that is less than the first slot depth;
(3) eight radial third slots each being adjacent to a second slot, and each having a third slot axis that is less than about 45° relative to the second slot axis of an adjacent second slot, the third slots having a third slot depth that is less than the second slot depth; and
(4) eight fourth slots each being adjacent to a first slot, and each having a first slot portion having a radial axis, and a second slot portion, extending outward from the first slot portion relative to a center of the planar disk, the second slot portion having a non-radial axis, and a width that increases from an inner end of the second slot portion toward an outer, peripheral end of the second slot portion, and each of the fourth slots having a fourth slot depth that is less than the first slot depth;

(iii) an upper surface that faces the outlet orifice; and
(iv) a lower surface that is opposite to the upper surface along the body axis; and

(D) an actuation valve connected to the fluid supply, wherein, when the actuation valve is operated, the fluid supply supplies the fluid to the piping and the plurality of nozzles and the fluid is delivered by the nozzles to the area to be protected in a spray pattern,
wherein the nozzles are positioned at a spacing of up to 20 feet by 20 feet.

9. The fire protection system according to claim 8 , wherein (i) the body of each nozzle has external threads on an outer surface near the inlet orifice, (ii) the piping includes connection portions having threads on an in

Assignees

• Reliable Automatic Sprinkler Co Inc

Inventors

• Pahila Oliver

Classifications

• B05B1/265

  the liquid or other fluent material being symmetrically deflected about the axis of the nozzle · CPC title

• A62C37/11

  heat-sensitive · CPC title

• A62C37/12 Primary

  with fusible links · CPC title

• B05B1/26 Primary

  with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets · CPC title

• B05B1/267

  the liquid or other fluent material being deflected in determined directions · CPC title