WO2016030956A1 - Gicleur - Google Patents

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Publication number
WO2016030956A1
WO2016030956A1 PCT/JP2014/072214 JP2014072214W WO2016030956A1 WO 2016030956 A1 WO2016030956 A1 WO 2016030956A1 JP 2014072214 W JP2014072214 W JP 2014072214W WO 2016030956 A1 WO2016030956 A1 WO 2016030956A1
Authority
WO
WIPO (PCT)
Prior art keywords
sprinkler head
nozzle
point alloy
melting point
heat
Prior art date
Application number
PCT/JP2014/072214
Other languages
English (en)
Japanese (ja)
Inventor
蔵寿 佐々木
Original Assignee
千住スプリンクラー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 千住スプリンクラー株式会社 filed Critical 千住スプリンクラー株式会社
Priority to PCT/JP2014/072214 priority Critical patent/WO2016030956A1/fr
Priority to TW104124704A priority patent/TW201607583A/zh
Publication of WO2016030956A1 publication Critical patent/WO2016030956A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10—Releasing means, e.g. electrically released
    • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
    • A62C37/12—Releasing means, e.g. electrically released heat-sensitive with fusible links

Definitions

  • an object of the present invention is to provide a sprinkler head that has strength, durability, or thermal conductivity and is reduced in weight.
  • the present invention provides the following sprinkler head. That is, it comprises a main body having a nozzle through which fire-extinguishing water passes, a valve that closes the outlet of the nozzle, and a thermal decomposition section that is locked to the main body and holds the valve at the outlet of the nozzle.
  • a sprinkler head that uses a low melting point alloy that melts by the heat of a fire and uses a material containing carbon nanotubes as a component of the thermal decomposition part.
  • the effect of achieving both durability and weight reduction and improving the heat conduction performance can be obtained.
  • the effects of carbon nanotubes include improved heat conduction performance, improved mechanical strength, improved corrosion resistance, and the like.
  • the coating formed by applying carbon nanotubes to a component is brought into direct contact with a low melting point alloy, or a coating made of carbon nanotubes is formed on the surface of the component, so that Can be improved, and heat transfer loss between a plurality of components can be reduced.
  • the thermal conductivity is improved. Furthermore, when a metal plate is embedded in the above-described material having good thermal conductivity and a part is molded, heat absorbed by the surface of the part can be transmitted to the metal plate. Further, a part of the metal plate can be exposed on the surface of the component, and the exposed portion can be joined to another component by a low melting point alloy.
  • the strength of the component can be improved by mixing fine steel pieces such as stainless steel or glass fiber as the metal contained in the resin material. Further, stainless steel and glass fiber have a heat insulating effect because they have poor heat conduction performance compared to iron and copper.
  • Parts coated with carbon nanotubes as described above and parts formed from resin materials containing carbon nanotubes are not only used for sprinkler head components but also for sprinkler head accessories, such as sprinkler head covers and sealing plates. Is also applicable.
  • a sprinkler head cover attached to a sprinkler head includes a retainer connected to the sprinkler head and a cover plate that covers the sprinkler head, and the cover plate and the retainer are low melting point alloys that are melted by the heat of a fire. Therefore, by using a material containing carbon nanotubes for the cover plate, it is possible to improve the thermal conductivity to the low melting point alloy and to reduce the weight of the cover plate.
  • Sectional drawing of the sprinkler head of 1st Embodiment. The exploded sectional view of a valve, a holder, and an elastic member.
  • the principal part sectional drawing of FIG. FIG. 6 is an exploded cross-sectional view of FIG. 5.
  • Sectional drawing of the Example which provided the film on the surface of the lower piece.
  • Sectional drawing of the sprinkler head of 3rd Embodiment Sectional drawing of the sprinkler head of 3rd Embodiment.
  • the main body 1 is cylindrical and has a nozzle 11 inside.
  • a male screw 12 is formed outside the main body 1, and the male screw 12 is screwed into a female screw of a fire extinguishing equipment pipe (not shown).
  • a valve seat 13 is formed at the discharge side end portion 11 a of the nozzle 11.
  • the valve seat 13 is formed as a recess 13 that is recessed on the nozzle 11 side, and includes a bottom surface 13a and an inner peripheral surface 13b.
  • the main body 1 is provided with two arms 14 and 14 extending in the direction of discharging water as “extinguishing liquid” discharged from the nozzle 11 from the vicinity of the valve seat 13.
  • the arms 14, 14 are curved and extend from the vicinity of the valve seat 13 and are connected on the extension of the central axis of the nozzle 11, and the connecting portion is a boss 15.
  • the boss 15 has a female screw 16 formed on a line AA that is the central axis of the nozzle 11.
  • a set screw 17 having no screw head is screwed to the female screw 16.
  • the valve 2 has a disk shape, and a sealing material 21 is provided on the surface on the nozzle 11 side.
  • a sealing material 21 made of a fluororesin sheet is attached to the valve 2 with an adhesive and is configured integrally with the valve 2.
  • the thermal decomposition unit 3 includes a link 32, a low melting point alloy 33, a lever 34, and a support column 35.
  • a coating containing carbon nanotubes is applied to the surface of the link 32 and a coating 130 is applied. Since the heat conduction performance is improved by the coating 130, the low melting point alloy 33 is melted and the sprinkler head S1 can be operated at an early stage after the occurrence of a fire. Further, since the corrosion resistance is improved by the coating 130, it is possible to prevent the corrosion product from being generated in the link 32.
  • the lever 34 is L-shaped, one end of which is bent and the hole 32b of the link 32 is locked.
  • the set screw 17 is engaged with the recess 34a formed at the other end, and the support column 35 is engaged with the groove 34b formed on the opposite surface of the recess 34a.
  • the holder 4 has a disk shape and is installed between the valve 2 and the thermal decomposition unit 3.
  • a concave portion 41 supported by one end side of the thermal decomposition unit 3 is formed on one side of the holder (upper surface in the drawing).
  • a convex portion 42 inserted through the hole 23 of the valve 2 is formed on the surface opposite to the surface where the concave portion 41 is formed. In the drawing, the convex portion 42 is inserted into the hole portion 23, and a movable gap 6 is provided between the tip of the convex portion 42 and the bottom surface of the hole portion 23.
  • the elastic member 5 is a disc spring and has an action of pressing the valve 2 to the nozzle 11 side and pressing the holder 4 to the thermal decomposition unit 3 side.
  • a load is applied to the elastic member 5 by a set screw 17. That is, when the set screw 17 is screwed in the direction of the nozzle 11, the elastic member 5 is pressed from the tip of the set screw 17 through the thermal decomposition part 3 and the holder 4, and the elastic member 5 is completely crushed by elastic deformation. Although it is not, it will be in the state crushed by the predetermined pressure with which the movable gap 6 remains. When the elastic member 5 is in the crushed state in this way, it is possible to obtain a state in which a closing load is applied to the valve 2 and the discharge side end portion 11a of the nozzle 11 is closed by the valve 2.
  • the disk spring which comprises the elastic member 5 is small in size, there exists an advantage which can be easily integrated in the sprinkler head S1 and can be elastically deformed with a big load. Specifically, when the pressure receiving area from the nozzle 11 of the valve 2 is 1 cm 2 , if the load by which the disc spring 5 is displaced is set to about 500 N, the disc spring will be when the water pressure in the nozzle 11 reaches about 5 MPa. 5 is elastically deformed so that the valve 2 can be separated from the valve seat 13 and the fire extinguishing liquid in the nozzle 11 can escape to the outside.
  • the second embodiment is a sprinkler head in which a coating containing carbon nanotubes is applied to the components of the thermal decomposition section.
  • the sprinkler head S2 of the second embodiment shown in FIG. 4 includes a main body 101, a frame 102, a valve 103, a deflector unit 104, a thermal decomposition unit 105, and a pressing piece 106.
  • symbol is attached
  • the configuration of the sprinkler head S2 of the second embodiment is the same as that described in Japanese Patent Application Laid-Open No. 2000-79182, and description of portions that are not very relevant to the present invention is omitted.
  • the sprinkler head S2 only the thermal decomposition unit 105 and the pressing piece 106 are disposed so as to protrude from the ceiling to the indoor side.
  • the thermal decomposition unit 105 includes a cylinder 110, a plunger 111, and a low melting point alloy 112.
  • the cylinder 110 has a cylindrical shape, and the upper end is closed by a flat surface.
  • a low melting point alloy 112 is accommodated in the cylinder 110.
  • a hole 113 formed through the low melting point alloy 112 is formed at the center of the upper end plane of the cylinder 110.
  • the plunger 111 has a shaft portion 114 and a disc-shaped flange portion 115 formed at the lower end thereof.
  • the shaft portion 114 is inserted into the hole 113 so that the upper surface of the flange portion 115 is in contact with the surface of the low melting point alloy 112.
  • a male screw 116 is provided at the upper end of the shaft portion 114.
  • the holding piece 106 includes an upper piece 121, a lower piece 122, and a leaf spring 123.
  • the diameters of the circular upper piece 121 and the circular lower piece 122 are the same, and are slightly smaller than the inner diameter of the inner flange 124 formed at the lower end of the cylindrical frame 102.
  • a female screw 125 that is screwed with the male screw 116 of the shaft portion 114 of the plunger 111 is screwed.
  • a hole through which the shaft portion 114 can be easily inserted is formed in the center of the lower piece 122.
  • the upper part of the lower piece 122 is recessed, and the leaf spring 123 is accommodated therein.
  • a circular recess 126 for accommodating the cylinder 110 is formed in the lower part.
  • the leaf spring 123 has a hole through which the shaft portion 114 can be inserted at the center of the disc-shaped bottom surface 127.
  • a plurality of spring portions 128 are installed from the periphery of the bottom surface 127 so as to extend obliquely at equal intervals.
  • the spring parts 128 are spaced apart by a gap. In the unloaded state, the tip of the spring portion 128 is disposed inside the outer edges of the upper piece 121 and the lower piece 122.
  • the leaf spring 123 is installed between the upper piece 121 and the lower piece 122, and the shaft portion 114 of the plunger 111 is inserted into each center hole.
  • the male screw 116 of the shaft portion 114 is screwed into the female screw 125 of the upper piece 121, the spring portion 128 of the leaf spring 123 is crushed between the upper piece 121 and the lower piece 122, and the tip of the spring portion 128 is moved. It will be in the state which protruded from the outer edge of the upper piece 121 and the lower piece 122.
  • the protruding spring portion 128 is engaged with the inner flange 124 of the frame 102 as shown in FIGS.
  • FIG. 8 A modification of the second embodiment shown in FIG. 8 is a sprinkler head described in Japanese Patent Laid-Open No. 11-299921.
  • a coating film 130 (not shown) of carbon nanotubes is applied to the surfaces of the cylinder 52 containing the low melting point alloy 51 contained in the thermal decomposition section 50, the cover 53 connected to the cylinder 52, and the heat collecting plate 54.
  • the heat conduction performance is improved.
  • heat transfer loss can be reduced by the close contact of the coating 130 of each component at the connecting portion between the cylinder 52, the cover 53, and the heat collecting plate 54.
  • the sprinkler head of the third embodiment shown in FIG. 9 includes a main body 61, a frame part 62, a valve 63, a deflector part 64, a thermal decomposition part 65, a support cup 66, and a cover plate part 7.
  • the configuration of the sprinkler head according to the third embodiment is the same as that described in Japanese Patent Application Laid-Open No. 2011-218062, and description of portions that are not very relevant to the present invention is omitted.
  • symbol is attached
  • the resin material a resin pellet in which carbon nanotubes or metal are mixed is used, or the resin pellet is mixed with carbon nanotubes or metal powder and molded by a mold. In any method, after molding, the carbon nanotube and the metal are mixed in the resin.
  • the surface of the cover plate 71 is exposed in the room. Therefore, the cover plate 71 colored in an arbitrary color can be manufactured by mixing the pigment at the time of molding.
  • a metal plate 73 is embedded and installed on the back surface of the cover plate 71. Copper or brass is used as the metal plate 73, and in the drawing, it is installed at three locations at equal intervals in the vicinity of the periphery of the cover plate 71.
  • the metal plate 73 is joined to a leg 74 formed at the lower end of the retainer 72 by a low melting point alloy 75.
  • the heat absorbed on the surface of the cover plate 71 can be transmitted to the metal plate 73 through the metal component inside the cover plate 71, and the low temperature bonded to the surface of the metal plate 73 can be obtained. Melting of the melting point alloy 75 can be promoted.
  • the retainer 72 has a cylindrical shape as described above, and a leg 74 joined to the lower end of the retainer 72 via the low melting point alloy 75 and the metal plate 73 of the cover plate 71 is provided.
  • the legs 74 are installed corresponding to the positions of the metal plates 73 and are arranged at equal intervals in the same manner as the cover plate 71 of FIG.
  • a flange 77 extended outward is formed between the leg 74 and the claw 76 of the retainer 72.
  • a slight gap is provided between the flange 77 and the edge of the cover plate 71. The position is adjusted by rotating the cover plate portion 7 so that the flange 77 is close to the lower surface of the ceiling board C.
  • the cover plate portion 7 configured as described above is installed on the sprinkler head S3.
  • the low-melting-point alloy 75 has heat absorbed from the surface and heat absorbed from the surface of the cover plate 71 transmitted to the metal plate 73 by the carbon nanotubes and metal components inside the cover plate 71, and the low-melting-point alloy 75 Promotes melting of 75.
  • the cover plate 71 is made of a resin material containing carbon nanotubes.
  • the coating 130 can be applied to the components of the thermal decomposition portion 65.

Abstract

La présente invention concerne un gicleur qui possède une résistance, une durabilité ou une conductivité thermique et est plus léger. Le gicleur de la présente invention (S1, S2, S3) est pourvu d'un corps principal (1, 61, 101), à l'intérieur duquel est formée une buse permettant de faire passer de l'eau pour éteindre un incendie, d'une vanne (2, 63, 103) pour fermer la sortie de la buse, et d'une section de décomposition sensible à la chaleur (3, 50, 65, 105) fixée au corps principal pour maintenir la vanne sur la sortie de la buse, ladite section de décomposition sensible à la chaleur comprenant un alliage à point de fusion bas (33, 51, 75, 112) qui fond sous l'effet de la chaleur d'un incendie. Dans le gicleur, un matériau comprenant des nanotubes de carbone est utilisé pour une partie de constituant de la section de décomposition sensible à la chaleur. En conséquence, il est possible de concevoir une partie qui est plus légère que les parties métalliques de l'état de la technique et dont la résistance et les performances de conductivité thermique ont été améliorées par rapport aux résines de l'état de la technique.
PCT/JP2014/072214 2014-08-26 2014-08-26 Gicleur WO2016030956A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2014/072214 WO2016030956A1 (fr) 2014-08-26 2014-08-26 Gicleur
TW104124704A TW201607583A (zh) 2014-08-26 2015-07-30 灑水頭

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/072214 WO2016030956A1 (fr) 2014-08-26 2014-08-26 Gicleur

Publications (1)

Publication Number Publication Date
WO2016030956A1 true WO2016030956A1 (fr) 2016-03-03

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TW (1) TW201607583A (fr)
WO (1) WO2016030956A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019150687A1 (fr) * 2018-02-05 2019-08-08 千住スプリンクラー株式会社 Tête de gicleur
CN111699025A (zh) * 2018-03-27 2020-09-22 千住灭火器株式会社 喷洒头

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107366767A (zh) * 2017-08-17 2017-11-21 张家港市艾罗执行器有限公司 快响应易熔液压泄放阀
JP2020031755A (ja) * 2018-08-28 2020-03-05 ヤマトプロテック株式会社 消火用ヘッド

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07284545A (ja) * 1994-04-15 1995-10-31 Senju Sprinkler Kk スプリンクラーヘッド
JPH11299921A (ja) * 1998-04-23 1999-11-02 Senju Sprinkler Kk スプリンクラーヘッド
JP2000079182A (ja) * 1998-09-07 2000-03-21 Senju Sprinkler Kk スプリンクラーヘッド
JP2004158227A (ja) * 2002-11-05 2004-06-03 Anzen Dengu Kk 温度ヒューズ
JP2009294138A (ja) * 2008-06-06 2009-12-17 Horiba Ltd インライン型可燃性ガスセンサ
JP2011112330A (ja) * 2009-11-30 2011-06-09 Shinko Electric Ind Co Ltd 放熱部品及びその製造方法
JP2011218062A (ja) * 2010-04-14 2011-11-04 Senju Sprinkler Kk スプリンクラーヘッド
JP2014028900A (ja) * 2012-07-31 2014-02-13 Showa Denko Kk 導電性樹脂組成物及びこれを用いた導電性塗料並びに導電性接着剤

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07284545A (ja) * 1994-04-15 1995-10-31 Senju Sprinkler Kk スプリンクラーヘッド
JPH11299921A (ja) * 1998-04-23 1999-11-02 Senju Sprinkler Kk スプリンクラーヘッド
JP2000079182A (ja) * 1998-09-07 2000-03-21 Senju Sprinkler Kk スプリンクラーヘッド
JP2004158227A (ja) * 2002-11-05 2004-06-03 Anzen Dengu Kk 温度ヒューズ
JP2009294138A (ja) * 2008-06-06 2009-12-17 Horiba Ltd インライン型可燃性ガスセンサ
JP2011112330A (ja) * 2009-11-30 2011-06-09 Shinko Electric Ind Co Ltd 放熱部品及びその製造方法
JP2011218062A (ja) * 2010-04-14 2011-11-04 Senju Sprinkler Kk スプリンクラーヘッド
JP2014028900A (ja) * 2012-07-31 2014-02-13 Showa Denko Kk 導電性樹脂組成物及びこれを用いた導電性塗料並びに導電性接着剤

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019150687A1 (fr) * 2018-02-05 2019-08-08 千住スプリンクラー株式会社 Tête de gicleur
JPWO2019150687A1 (ja) * 2018-02-05 2021-01-14 千住スプリンクラー株式会社 スプリンクラーヘッド
US11324980B2 (en) 2018-02-05 2022-05-10 Senju Sprinkler Co., Ltd. Sprinkler head
JP7241407B2 (ja) 2018-02-05 2023-03-17 千住スプリンクラー株式会社 スプリンクラーヘッド
CN111699025A (zh) * 2018-03-27 2020-09-22 千住灭火器株式会社 喷洒头

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