TWI464006B - A low pressure water mist fire sprinkler apparatus - Google Patents

Description

Automatic sprinkler

The present invention relates to fire extinguishing devices, and more particularly to an automatic watering device for extinguishing fires having several improved features.

Generally, the automatic sprinkler installed on the ceiling is a wet pipe type. When a fire occurs indoors, the temperature will rise. When the temperature rises to a preset value, the automatic sprinkler will be activated and the valve of the water pipe will be opened. The automatic sprinkler is sprayed down to the fire point to extinguish the fire.

However, there are many disadvantages to the automatic sprinkler system, for example, the water pressure is more than 7 bar, which is not only very energy-intensive but also easy to damage the pipeline, thus increasing the maintenance cost; the water flow can only be downward or to the side. Spraying can not be sprayed down and sideways at the same time, so the limited range of spraying water is not conducive to instant fire extinguishing; the material of the water pipe cannot be black seamless steel pipe and must be more expensive copper or stainless steel water pipe, which will increase production cost. Not conducive to market competition.

The reason is that the present inventors have been developing and designing the present invention in response to the above-mentioned needs, in the spirit of perseverance and the purpose of excellence, and actively researching and improving, and constantly working hard and experimenting.

The main object of the present invention is to provide an automatic water sprinkling device for solving the problems of the prior art, such as excessive water pressure, very energy consumption, easy damage of the pipeline, high maintenance cost, and the water flow can only be sprayed downward or to the side while not simultaneously. Spraying down and to the side, so the limited range of spraying water is not conducive to instant fire extinguishing, and the material of the water pipe is limited by the more expensive copper or stainless steel water pipes, etc., and research and development breakthroughs are made to make the invention have accurate and reliable effects. .

The invention relates to an automatic sprinkler device comprising: a disc-shaped cover comprising a concave surface and a through hole extending through the center of the concave surface; a needle comprising a tapered end which can be inserted into the through hole to close it; a nozzle comprising: a plurality of first outlets annularly disposed on the lower side, a second outlet at the top end, which can be in close contact with the cover, an opening at the center of the bottom end, and a plurality of projections located around the opening a member for fixing the lower portion of the needle, a hollow cylindrical member located above and communicating with the opening, which allows the lower portion of the needle to pass freely therethrough, an annular flange located at the middle portion of the outer surface of the nozzle, a threaded portion below the flange, and a threaded portion above the flange for screwing and fixing in the ceiling; a bracket comprising: a claw member located below, the claw member having a concave portion at the center of the lower center a hole, a ring-shaped joint member at the top end, and a threaded portion on the inner surface of the joint member and the inner surface of the upper portion of the claw member, which can be screwed with the threaded portion to fix the nozzle in the bracket; a heat-sensitive glass column The utility model comprises: a top tapered end, a bottom tapered end, which can be inserted and fixed in the concave hole, and a glass liquid container in the middle, which stores a liquid which expands after being heated; and a disc-shaped plug The utility model comprises: a positioning hole at the center of the bottom, an annular fixing member protruding from the top, and a plurality of inclined channels extending up and down, wherein the plug is just inserted into the opening and the periphery thereof to block it, and the fixing member is just It can be placed on the bottom end of the needle to fix the needle in the plug, and the tapered end of the glass column can be inserted into the positioning hole, so that the glass column is positioned in the bracket and fixed by the bracket and the plug, and the needle is not Will fall down; in the indoor fire, the indoor temperature will rise rapidly, the liquid in the liquid container will expand after being heated, when the indoor temperature rises to a preset temperature, the liquid container is broken due to excessive expansion of the liquid, and the needle is also Will tilt so that the through hole is opened, at which time high pressure water will be sprayed into the nozzle through the through hole, and then the water will (1) generate a vortex through the gap between the needle and the cylindrical member and pass through the passage, and then in the form of a water mist Spray down ; And (2) spraying a mist of water through the first outlet to the four sides.

The following is a detailed description of the embodiments, and the detailed description of the technical features of the present invention will be made.

Referring first to Figures 1 to 7B, the present invention provides an automatic sprinkler apparatus as a preferred embodiment of the present invention, the automatic sprinkler apparatus comprising the following components: a cover 1 (refer to Figures 2A and 2B) It is disc-shaped and includes a concave surface 11 and a through hole 12 extending through the center of the concave surface 11. The thickness of the cover 1 depends on the height of the ceiling and the fire hazard level of the room (or building).

A needle 2 (refer to Figs. 3A and 3B) includes a top tapered end 21 that can be inserted into the through hole 12 to close it, thereby preventing water from flowing through the cover 1 when the automatic sprinkler is not in operation.

A nozzle 3 (refer to FIGS. 4A and 4B) includes: a plurality of (preferably 4-12) first outlets 31 annularly disposed on the lower side, the apertures being approximately 0.5 to 1.5 mm; a second outlet 32 having a diameter equal to the diameter of the cover 1, so that the cover 1 can be tightly coupled to the second outlet 32 to prevent water leakage; an opening 33 at the center of the bottom end; and a plurality (e.g., four) located around the opening 33 a protruding member 34 for fixing the lower side of the needle 2 to be vertical; a short hollow cylindrical member 35 located above and communicating with the opening 33, the needle 2 passing under the cylindrical member 35, the diameter of the needle 2 Slightly smaller than the diameter of the cylindrical member 35, that is, there is a hollow cylindrical gap therebetween; an annular flange 36 located at approximately the middle portion of the outer surface of the nozzle 3, a threaded portion 37 located below the flange 36, and a convex portion A threaded portion 38 above the rim 36 is threadedly secured in the ceiling. The working pressure of the nozzle 3 is 3 to 7 bar, and the larger the working pressure of the nozzle 3, the smaller the aperture of the first outlet 31, and the water flow rate of the nozzle 3 at the time of starting is 3 to 6 GPM (gallon per minute).

A bracket 4 (refer to FIGS. 5A, 5B and 5C) includes a claw 41 located below, the claw 41 having a recess 411 at the bottom center of the lower portion; a ring-shaped engaging member 42 at the top; The inner surface of the engaging member 42 and the threaded portion 43 of the upper inner surface of the claw member 41 can be screwed with the threaded portion 37 to fix the nozzle 3 in the bracket 4, and the function of the flange 36 is to block and prevent the nozzle 3 from overstretching. Enter the bracket 4.

A heat-sensitive glass column 5 (refer to Figs. 6A and 6B) includes a top tapered end 51, a bottom tapered end 52, and a centrally located liquid container 53 in which is stored a liquid which expands upon heating. The bottom tapered end 52 is just insertable and fixed in the recess 411.

A disc-shaped plug member 6 (refer to Figs. 7A and 7B) includes a positioning hole 61 at the center of the bottom portion, an annular fixing member 62 projecting from the top, and a plurality of inclined passages 63 extending up and down. The plug 6 is sized to fit into the opening 33 and its surroundings to block it, and the retaining member 62 fits over the bottom end of the needle 2 thereby securing the needle 2 in the plug 6. The top tapered end 51 of the glass column 5 is just inserted into the positioning hole 61, so that the glass column 5 is positioned in the bracket 4, and is fixed by the bracket 4 and the plug 6, and the needle 2 does not fall.

The operation of the present invention is as follows. When a fire occurs indoors, the indoor temperature rises rapidly, and the liquid in the liquid container 53 expands when heated, and when the indoor temperature rises to a preset temperature, the liquid container 53 is made of glass. The needle 2 will be broken due to excessive expansion of the liquid, and the needle 2 will be tilted so that the through hole 12 is slightly opened. At this time, the pressurized water in the fire water pipe (not shown) is immediately injected into the nozzle 3 through the through hole 12. Then, the water (1) generates a vortex through the gap between the needle 2 and the cylindrical member 35 and passes through the passage 63, and then sprays downwardly to the fire point in a water mist; and (2) passes through the first outlet 31 The sides of the square are sprayed widely into the fire point in the form of a mist, and the sum of the two functions can effectively and quickly extinguish the fire.

As can be seen from the above-described embodiments of the present invention, the present invention has the following advantages and features: since the liquid is used as a liquid for extinguishing fire, the fire extinguishing performance is greatly improved, and the fire can be extinguished in a short time, which is particularly effective for small fires.

And because of the low working pressure (3 to 7 bar), it consumes less energy and is more durable.

Suitable for wet or dry tube automatic sprinklers.

It can be used with any type of water pipe, including: copper tube type, Chlorinated polyvinyl chloride (CPVC), stainless steel, galvanized iron, and black seamless steel pipe, so that the finished product can be reduced to facilitate market sales.

The automatic sprinkler is easy to assemble and disassemble.

The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the main technical features and scope of the present invention. Therefore, those skilled in the art can make modifications and changes to the above embodiments without departing from the spirit of the invention. The invention has the industrial applicability, the novelty and the progressiveness, and meets the requirements of the invention patent, and files an application according to law.

1. . . cover

11. . . Concave surface

12. . . Through hole

2. . . needle

twenty one. . . Tapered end

3. . . nozzle

31. . . First exit

32. . . Second exit

33. . . Opening

34. . . Projection

35. . . Hollow cylindrical part

36. . . Annular flange

37. . . Thread segment

38. . . Thread part

4. . . support

41. . . Claw

411. . . Concave hole

42. . . Ring joint

43. . . Thread segment

5. . . Heat-sensitive glass column

51. . . Top tapered end

52. . . Bottom tapered end

53. . . Liquid container

6. . . Disc-shaped plug

61. . . Positioning hole

62. . . Ring fixture

63. . . aisle

Figure 1 is a longitudinal sectional view of an automatic sprinkler according to the present invention;

2A and 2B are a longitudinal sectional view and a lower view, respectively, of the cover;

3A and 3B are top and side views, respectively, of the needle;

4A and 4B are a top view and a longitudinal sectional view, respectively, of the nozzle;

5A, 5B and 5C are respectively a longitudinal sectional view, a bottom view and a perspective view of the stent;

6A and 6B are a side view and a bottom view, respectively, of a glass column; and

7A and 7B are a top view and a longitudinal cross-sectional view, respectively, of the plug.

[Main component symbol description]

1. . . cover

2. . . needle

3. . . nozzle

4. . . support

5. . . Heat-sensitive glass column

6. . . Disc-shaped plug

Claims (9)

An automatic sprinkler device comprising: a disc-shaped cover comprising a concave surface and a through hole extending through the center of the concave surface; a needle comprising a tapered end which can be inserted into the through hole to close it; a nozzle The utility model comprises: a plurality of first outlets arranged annularly on the lower side, a second outlet at the top end, which can be in close contact with the cover, an opening at the center of the bottom end, and a plurality of convex parts located around the opening, Below the fixed needle, a hollow cylindrical member is located above and in communication with the opening, which allows the lower portion of the needle to pass freely therethrough, an annular flange located in the middle portion of the outer surface of the nozzle, one below the flange a threaded portion, and a threaded portion above the flange for screwing and fixing in the ceiling; a bracket comprising: a claw member located below, the claw member having a recessed hole at the top center of the lower portion, a ring-shaped engaging member at the top end, and a threaded portion on the inner surface of the engaging member and the inner surface of the upper portion of the claw member, which can be screwed with the threaded portion to fix the nozzle in the bracket; a heat-sensitive glass column comprising: The top tapered end, a bottom tapered end, can be inserted and fixed in the recessed hole, and a glass liquid container in the middle, which stores a liquid which expands after being heated; and a disc-shaped plug member, comprising: a positioning hole at the center of the bottom, an annular fixing member protruding from the top, and a plurality of upward and downwardly extending passages, wherein the plug member can be inserted into the opening and its surroundings to block it, and the fixing member can be placed on the needle The bottom end thus fixes the needle in the plug member, and the tapered end of the top of the glass column can be inserted into the positioning hole, thereby positioning the glass column in the bracket and being fixed by the bracket and the plug member, and the needle does not fall; When a fire occurs indoors, the indoor temperature rises rapidly, and the liquid in the liquid container expands when heated. When the indoor temperature rises to a preset temperature, the liquid container ruptures due to excessive expansion of the liquid, and the needle is tilted. The through hole is opened, at which time high pressure water is sprayed into the nozzle through the through hole, and then the water (1) generates a vortex through the gap between the needle and the cylindrical member and passes through the passage, and then sprays down in the form of a water mist; (2) by An outlet is sprayed in the form of a mist to the sides; wherein the number of the first outlets is 4 to 12; wherein the aperture of the first outlet is 0.5 m to 1.5 mm; wherein the working pressure of the nozzle is 3 to 7 bar; The passage of the plug is inclined; wherein the automatic sprinkler can be matched with a copper tube type, Chlorinated polyvinyl chloride (CPVC), stainless steel, galvanized iron, or a black seamless steel tube; The automatic sprinkler device is suitable for extinguishing small fires. The automatic sprinkler device of claim 1, wherein the automatic sprinkler device is a wet pipe type automatic sprinkler device. The automatic sprinkler device of claim 1, wherein the automatic sprinkler device is a dry pipe type automatic sprinkler device. An automatic sprinkler device comprising: a disc-shaped cover comprising a concave surface and a through hole extending through the center of the concave surface; a needle comprising a tapered end which can be inserted into the through hole to close it; a nozzle The utility model comprises: a plurality of first outlets arranged annularly on the lower side, a second outlet at the top end, which can be in close contact with the cover, an opening at the center of the bottom end, and a plurality of convex parts located around the opening, Below the fixed needle, a hollow cylindrical member is located above and in communication with the opening, which allows the lower portion of the needle to pass freely therethrough, an annular flange located in the middle portion of the outer surface of the nozzle, one below the flange a threaded portion, and a threaded portion above the flange for screwing and fixing in the ceiling; a bracket comprising: a claw member located below, the claw member having a recessed hole at the top center of the lower portion, a ring-shaped engaging member at the top end, and a threaded portion on the inner surface of the engaging member and the inner surface of the upper portion of the claw member, which can be screwed with the threaded portion to fix the nozzle in the bracket; A heat-sensitive glass column comprising: a top tapered end, a bottom tapered end, insertable and fixed in the recessed hole, and an intermediate glass liquid container in which a liquid which expands after being heated is stored; And a disc-shaped plug member, comprising: a positioning hole at the center of the bottom, an annular fixing member protruding from the top, and a plurality of up-and-down passages, wherein the plug member can be inserted into the opening and the periphery thereof Blocking it, the fixing piece can be placed on the bottom end of the needle so that the needle is fixed in the plug, and the tapered end of the glass column can be inserted into the positioning hole, thereby positioning the glass column in the bracket and being supported by the bracket and the plug Fixed, and the needle will not fall; in the case of fire in the room, the indoor temperature will rise rapidly, the liquid in the liquid container will expand after being heated, and when the indoor temperature rises to a preset temperature, the liquid container expands excessively due to the liquid. And the needle is ruptured, and the needle is tilted to open the through hole. At this time, high pressure water is sprayed into the nozzle through the through hole, and then the water (1) generates a vortex through the gap between the needle and the cylindrical member and passes through the passage. Again Spray mist downwardly; and (2) to spray water mist toward the outlet through the first four side surfaces, wherein the nozzle operating pressure lines 3 to 7 bars. The automatic sprinkler device of claim 4, wherein the passage of the plug is inclined. An automatic sprinkler device as claimed in claim 4, wherein The automatic sprinkler system is a wet pipe type automatic sprinkler. The automatic sprinkler device of claim 4, wherein the automatic sprinkler device is a dry pipe type automatic sprinkler device. The automatic sprinkler device of claim 4, wherein the automatic sprinkler device can be combined with a copper tube type, Chlorinated polyvinyl chloride (CPVC), stainless steel, galvanized iron, or a black seamless steel tube. The automatic sprinkler device of claim 4, wherein the automatic sprinkler device is adapted to extinguish a small fire.