CN103405876B - A kind of water curtain for fire-proof shower nozzle containing combination strip nozzle - Google Patents
A kind of water curtain for fire-proof shower nozzle containing combination strip nozzle Download PDFInfo
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- CN103405876B CN103405876B CN201310371545.9A CN201310371545A CN103405876B CN 103405876 B CN103405876 B CN 103405876B CN 201310371545 A CN201310371545 A CN 201310371545A CN 103405876 B CN103405876 B CN 103405876B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 149
- 239000007921 spray Substances 0.000 claims description 24
- 239000000779 smoke Substances 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000011521 glass Substances 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000004544 sputter deposition Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Nozzles (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The present invention relates to a kind of water curtain for fire-proof shower nozzle containing combination strip nozzle, including fire detector, its outfan is connected with the control end of electromagnetic valve, the water inlet of electromagnetic valve is connected with the outlet of fire fighting supply pipeline, the outlet of electromagnetic valve is connected with the water main of head body, water main is connected with at least three tunnel water supply arms respectively by joint, each road water supply arm all connects with cavity cavity corresponding thereto, the shape of shell forming each cavity cavity matches with the outer contoured shape of building element to be protected, the bottom of cavity cavity arranges the nozzle communicated therewith, the jet face of nozzle covers the surface of building element to be protected.It is convex shape, the column building element effect that carries out water curtain covering protection that the present invention improves profile, decreases the sputtering phenomenon of water curtain, is particularly applicable to protect glass and connects frame and the less steel structure column perpendicular to the ground of diameter.
Description
Technical field
The present invention relates to fire-fighting equipment technical field, especially a kind of water curtain for fire-proof shower nozzle containing combination strip nozzle.
Background technology
Building element applies water curtain protection and can improve the fire resistance of building element, be used for the building element protecting the water curtain that the drencher of building element sprays to entirety to be plane at present, such as rolling screen door, flame resistant glass etc., there is good coverage effect；A kind of exterior wall water curtain fire-extinguishing system for high-rise buildings (publication number: CN201969224) and drencher (publication number: CN2577899Y) provide the water curtain protection structure of Fan spray head; but, construction profile cannot be convex shape building element by single shower nozzle and column building element realizes water curtain and covers.Such as, when two panels flame resistant glass adopts steel framework to connect, flame resistant glass surface is protruded from owing to connecting frame, need multiple existing shower nozzle could realize connecting being completely covered of frame water curtain, not only result in investment and the waste of water resource, and after the water curtain of existing shower nozzle ejection runs into the framework of protrusion, it may occur that sputtering phenomenon, if water is splashed on other shower nozzles, it is possible to can cause other shower nozzles cannot be normally-open.In addition; the cylindrical steel column vertical with ground can be carried out water curtain protection currently without suitable single water curtain for fire-proof shower nozzle; although what have has carried out a degree of improvement to drencher; improve the area coverage of ejection water curtain, but construction profile cannot be still building element and the column building element realization effectively covering of convex shape by the water curtain of single shower nozzle ejection.
Summary of the invention
It is an object of the invention to provide one to be capable of profile being that convex shape, columned building element carry out water curtain protection, improve the water curtain for fire-proof shower nozzle containing combination strip nozzle of the fire resistance of building element.
For achieving the above object, present invention employs techniques below scheme: a kind of water curtain for fire-proof shower nozzle containing combination strip nozzle, including head body, electromagnetic valve and fire detector, the outfan of fire detector is connected with the control end of electromagnetic valve, the water inlet of electromagnetic valve is connected with the outlet of fire fighting supply pipeline, the outlet of electromagnetic valve is connected with the water main of head body, water main is connected with at least three tunnel water supply arms respectively by joint, each road water supply arm all connects with cavity cavity corresponding thereto, the shape of the shell entirety forming each cavity cavity matches with the outer contoured shape of building element to be protected, the bottom of each cavity cavity arranges the nozzle communicated therewith, total jet face of all nozzles is completely covered the surface of building element to be protected.
Described fire detector is heat detector or smoke detector or carbon monoxide, sense cigarette, temperature-sensitive three combined fire detector.
Described joint is four-way connection, described water main is connected with left water supply arm, Road water supply arm and right wing water supply arm respectively by four-way connection, left water supply arm connects with left side cavity, water supply arm in Road connects with middle part cavity, right wing water supply arm connects with right side cavity, left side cavity, middle part cavity, right side cavity bottom be respectively provided with left side nozzles, middle part nozzle, right side nozzles, left side nozzles connects with left side cavity, middle part nozzle connects with middle part cavity, and right side nozzles connects with right side cavity.
Form the shell overall U-shaped of described left side cavity, middle part cavity, right side cavity, middle part cavity is offered at the middle part of described shell, the both sides of shell offer left side, right side cavity respectively, left side nozzles, right side nozzles lay respectively at the arranged on left and right sides of middle part nozzle, the centrage of three nozzles is in the same plane, the water spray tangential direction of left side nozzles and right side nozzles is contrary, the water spray tangent line of middle part nozzle and the water spray tangential direction of left side nozzles, right side nozzles are perpendicular, and three nozzles are integrally formed U-shaped and common to the internal water spray of U-shaped.
Form the left side case body of described left side cavity, form the middle housing housing of described middle part cavity, the right side case body forming described right side cavity collectively constitutes the shell entirety of annular, described left side case body, middle housing housing, right side case body is all in arc-shaped, and its arc radius is identical, a left side for middle housing housing, right two ends are respectively through hinge and left side case body, right side case body is hinged, middle part nozzle, left side nozzles is identical with the open height of right side nozzles, arc length is equal, the water spray tangent line of three nozzles is on a horizontal plane, the water spray tangential direction of three nozzles is directed to the center of circle of the annulus that three nozzles surround.
Described water main, four-way connection, Road water supply arm, right wing water supply arm, left water supply arm, middle part cavity, right side cavity, left side cavity, middle part nozzle, left side nozzles and right side nozzles are one-body molded.
Described left side nozzles, right side nozzles, middle part nozzle are all in flat, and the open height of three is identical, and left side nozzles is consistent with the length of right side nozzles.
Described water main, four-way connection, Road water supply arm, middle part cavity and middle part nozzle are one-body molded.
Described left side nozzles, right side nozzles, middle part nozzle are all in flat arcuation, and the open height of three is identical, arc length is equal.
As shown from the above technical solution; compare with existing water curtain for fire-proof shower nozzle; the present invention can when only using a head body; improve profile is convex shape, the column building element effect that carries out water curtain covering protection; decrease the sputtering phenomenon of water curtain, be particularly applicable to protect glass and connect frame and the less steel structure column perpendicular to the ground of diameter.Realizing the open and close of shower nozzle owing to the present invention controls electromagnetic valve by fire detector, shower nozzle can use in enclosed automatic sprinkler system, compares with other drenchers, improves the engineering adaptability of shower nozzle.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment one in the present invention；
Fig. 2 is the top view of nozzle body in Fig. 1；
Fig. 3,4 it is A-A, B-B sectional view of Fig. 2 respectively；
Fig. 5 is the structural representation of embodiment two in the present invention；
Fig. 6 is the top view of nozzle body in Fig. 5；
Fig. 7 is the A-A profile of Fig. 6.
Detailed description of the invention
A kind of water curtain for fire-proof shower nozzle containing combination strip nozzle, including head body, electromagnetic valve 1 and fire detector, the outfan of fire detector is connected with the control end of electromagnetic valve 1, the water inlet of electromagnetic valve 1 is connected with the outlet of fire fighting supply pipeline 13, the outlet of electromagnetic valve 1 is connected with the water main 3 of head body, water main 3 is connected with at least three tunnel water supply arms respectively by joint, each road water supply arm all connects with cavity cavity corresponding thereto, the shape of the shell entirety forming each cavity cavity matches with the outer contoured shape of building element to be protected, the bottom of each cavity cavity arranges the nozzle communicated therewith, total jet face of all nozzles is completely covered the surface of building element to be protected.Described fire detector is heat detector 2 or smoke detector or carbon monoxide, sense cigarette, temperature-sensitive three combined fire detector.As shown in Figure 1,5; the other kinds of fire detectors such as smoke detector can be adopted to replace heat detector 2; to improve fire detection ability, even if with regard to energy opens solenoid valve 1 when there is not obvious temperature rise near building element, building element being carried out water curtain protection.Electromagnetic valve 1 is used for controlling water and flows into shower nozzle, it is achieved the open and close of shower nozzle；Heat detector 2 protects the ambient temperature residing for object according to water curtain, controls the unlatching of electromagnetic valve 1, and then controls when to open water curtain protection.The aperture of electromagnetic valve 1 can adjust, it is achieved the control to water supply flow in varied situations, so can reduce the waste of the water yield and prevent water curtain from sputtering after contacting with building element.
Such as Fig. 1, shown in 5, described joint is four-way connection 4, described water main 3 by four-way connection 4 respectively with left water supply arm 7, Road water supply arm 5 is connected with right wing water supply arm 6, left water supply arm 7 connects with left side cavity 12, Road water supply arm 5 connects with middle part cavity 8, right wing water supply arm 6 connects with right side cavity 14, left side cavity 12, middle part cavity 8, the bottom of right side cavity 14 is respectively provided with left side nozzles 10, middle part nozzle 9, right side nozzles 11, left side nozzles 10 connects with left side cavity 12, middle part nozzle 9 connects with middle part cavity 8, right side nozzles 11 connects with right side cavity 14.Water main 3 is used for connecting electromagnetic valve 1 and four-way connection 4；Four-way connection 4 realizes distribution water supply function, by the moisture dispensing left water supply arm 7 in water main 3, Road water supply arm 5 and right wing water supply arm 6；Each water supply arm is connected with each cavity respectively, and current have after entering cavity to a certain degree to be accumulated, and the Water storage of cavity can reduce the uneven of nozzle spray；Nozzle is used for controlling the shape of ejection water curtain so that the object of water curtain energy covering protection.The shape of nozzle according to the contours profiles of building element to be protected, can be changed；The number that can also increase water supply arm and nozzle improves the water curtain protective efficacy to building element; such as to the pentagonal prism body that only four faces need water curtain to protect; can increasing the number of water supply arm and nozzle to four, each nozzle realizes the water curtain protection in a face.
Embodiment one
Such as Fig. 1, 2, 3, shown in 4, form described left side cavity 12, middle part cavity 8, the shell overall U-shaped of right side cavity 14, middle part cavity 8 is offered at the middle part of described shell, the both sides of shell offer left side cavity 12 respectively, right side cavity 14, left side nozzles 10, right side nozzles 11 lays respectively at a left side for middle part nozzle 9, right both sides, the centrage of three nozzles is positioned in same level, the water spray tangential direction of left side nozzles 10 and right side nozzles 11 is contrary, the water spray tangent line of middle part nozzle 9 and left side nozzles 10, the water spray tangential direction of right side nozzles 11 is perpendicular, three nozzles are integrally formed U-shaped and common to the internal water spray of U-shaped.Described water main 3, four-way connection 4, Road water supply arm 5, right wing water supply arm 6, left water supply arm 7, middle part cavity 8, right side cavity 14, left side cavity 12, middle part nozzle 9, left side nozzles 10 and right side nozzles 11 are one-body molded.Described left side nozzles 10, right side nozzles 11, middle part nozzle 9 are all in flat, and the open height of three is identical, and left side nozzles 10 is consistent with the length of right side nozzles 11.
As shown in Figure 1,2,3, 4, after heat detector 2 detects ambient temperature arrival design temperature, heat detector 2 sends control signal to electromagnetic valve 1, controls electromagnetic valve 1 and opens.Four-way connection 4 is in cross, and the bottom of water main 3 connects the upper end of four-way connection 4, and the lower end of four-way connection 4, right-hand member and left end are connected with left water supply arm 7 with Road water supply arm 5, right wing water supply arm 6 respectively.Water supply arm 5 in Road is shorter, and its upper end and four-way connection 4 connect, and its lower end is connected with middle part cavity 8.The bottom of middle part cavity 8 is connected with middle part nozzle 9, and middle part nozzle 9 is flat, and consistent with the length of middle part cavity 8 in the longitudinal direction, and arranging cavity between shower nozzle and nozzle is the uniformity being improved flat nozzle spray by the Water storage of cavity.Left side nozzles 10 and right side nozzles 11 are also flat, and consistent with the length of affiliated cavity in the longitudinal direction.
The present embodiment can be used for protecting three surfaces of rectangular building element, such as connects the steel framework of flame resistant glass.When installing; electromagnetic valve 1 and fire fighting supply pipeline 13 are threaded connection; heat detector 2 is arranged on the position being prone to detect building element temperature rise to be protected; nozzle body is arranged on the top of building element to be protected; adjust middle part nozzle 9, left side nozzles 10 and right side nozzles 11; make it parallel with the three of building element to be protected faces; and adjust the distance of nozzle and building element to be protected and the output of shower nozzle, make the water curtain that nozzle sprays can effectively cover three surfaces of building element to be protected.
Embodiment two
Such as Fig. 5, 6, shown in 7, form the left side case body of described left side cavity 12, form the middle housing housing of described middle part cavity 8, the right side case body forming described right side cavity 14 collectively constitutes the shell entirety of annular, described left side case body, middle housing housing, right side case body is all in arc-shaped, and its arc radius is identical, a left side for middle housing housing, right two ends are respectively through hinge 15 and left side case body, right side case body is hinged, middle part nozzle 9, left side nozzles 10 is identical with the open height of right side nozzles 11, arc length is equal, the water spray tangent line of three nozzles is on a horizontal plane, the water spray tangential direction of three nozzles is directed to the center of circle of the annulus that three nozzles surround.Described water main 3, four-way connection 4, Road water supply arm 5, middle part cavity 8 and middle part nozzle 9 are one-body molded.Described left side nozzles 10, right side nozzles 11, middle part nozzle 9 are all in flat arcuation, and the open height of three is identical, arc length is equal.
After heat detector 2 detects ambient temperature arrival design temperature, heat detector 2 sends control signal to electromagnetic valve 1, controls electromagnetic valve 1 and opens.Nozzle body is made up of water main 3, four-way connection 4, Road water supply arm 5, right wing water supply arm 6, left water supply arm 7, middle part cavity 8, left side cavity 12, right side cavity 14, middle part nozzle 9, left side nozzles 10, right side nozzles 11 and hinge 15.In the present embodiment, the shell of middle part cavity 8, left side cavity 12 and right side cavity 14 is all the arc-shaped of about 110 °, and the arc radius of three cavitys is identical, the two ends, left and right of middle part cavity 8 shell are connected with left side cavity 12, right side cavity 14 respectively through two hinges 15, can so that three shell cavities are combined into circular by regulating the folding of hinge 15.Four-way connection 4 is in cross, and the bottom of water main 3 connects the upper end of four-way connection 4, and the lower end of four-way connection 4, right-hand member and left end are connected with left water supply arm 7 with Road water supply arm 5, right wing water supply arm 6 respectively.Water supply arm 5 in Road is shorter, and upper end and four-way connection 4 connect, and lower end is connected with middle part cavity 8.The bottom of middle part cavity 8 is connected with middle part nozzle 9, and middle part nozzle 9 is flat arcuation, and consistent with inside cavities arc length in the length of nozzle circular arc.Arranging cavity between shower nozzle and nozzle is the uniformity being improved flat arcuation nozzle spray by the Water storage of cavity.The length of left water supply arm 7 and right wing water supply arm 6 is longer, and they one end and four-way connection 4 connect, and other end connects left side cavity 12 and right side cavity 14 respectively.
The present embodiment can be used for protecting cylindrical construction component, such as vertical steel structure column.The diameter of the annulus that the diameter outline of cylindrical construction component to be protected is formed after closing less than the present embodiment hinge 15.When installing, electromagnetic valve 1 and supply channel 13 are threaded connection, heat detector 2 is arranged on the position being prone to detection cylindrical construction component temperature rise to be protected, nozzle body is arranged on the top of cylindrical construction component to be protected, again two hinges 15 connecting shell cavity are outwardly opened, cylindrical construction component to be protected is placed between three part shell cavities, again hinge 15 is inwardly closed, the annulus that cylindrical construction component to be protected is formed by three shell cavities is made to surround, and circle Ring current distribution overlaps with the centrage of cylindrical construction component to be protected as far as possible, finally adjust the output of shower nozzle, after shower nozzle is opened, the water curtain of the ejection of nozzle can effectively cover cylindrical construction component to be protected.
In sum; compare with existing water curtain for fire-proof shower nozzle; the present invention can when only using a head body; improve profile is convex shape, the column building element effect that carries out water curtain covering protection; decrease the sputtering phenomenon of water curtain, be particularly applicable to protect glass and connect frame and the less steel structure column perpendicular to the ground of diameter.Realizing the open and close of shower nozzle owing to the present invention controls electromagnetic valve 1 by fire detector, shower nozzle can use in enclosed automatic sprinkler system, compares with other drenchers, improves the engineering adaptability of shower nozzle.
Claims (1)
1. the water curtain for fire-proof shower nozzle containing combination strip nozzle, it is characterized in that: include head body, electromagnetic valve (1) and fire detector, the outfan of fire detector is connected with the control end of electromagnetic valve (1), the water inlet of electromagnetic valve (1) is connected with the outlet of fire fighting supply pipeline (13), the outlet of electromagnetic valve (1) is connected with the water main (3) of head body, water main (3) is connected with at least three tunnel water supply arms respectively by joint, each road water supply arm all connects with cavity cavity corresponding thereto, the shape of the shell entirety forming each cavity cavity matches with the outer contoured shape of building element to be protected, the bottom of each cavity cavity arranges the nozzle communicated therewith, total jet face of all nozzles is completely covered the surface of building element to be protected；
Described fire detector is heat detector (2) or smoke detector or carbon monoxide, sense cigarette, temperature-sensitive three combined fire detector；
Described joint is four-way connection (4), described water main (3) by four-way connection (4) respectively with left water supply arm (7), Road water supply arm (5) is connected with right wing water supply arm (6), left water supply arm (7) connects with left side cavity (12), Road water supply arm (5) connects with middle part cavity (8), right wing water supply arm (6) connects with right side cavity (14), left side cavity (12), middle part cavity (8), the bottom on right side cavity (14) is respectively provided with left side nozzles (10), middle part nozzle (9), right side nozzles (11), left side nozzles (10) connects with left side cavity (12), middle part nozzle (9) connects with middle part cavity (8), right side nozzles (11) connects with right side cavity (14)；
Described shell overall U-shaped or annular；
Form described left side cavity (12), middle part cavity (8), the shell overall U-shaped on right side cavity (14), middle part cavity (8) is offered at the middle part of described shell, the both sides of shell offer left side cavity (12) respectively, right side cavity (14), left side nozzles (10), right side nozzles (11) lays respectively at the left side at middle part nozzle (9), right both sides, the centrage of three nozzles is in the same plane, the water spray tangential direction of left side nozzles (10) and right side nozzles (11) is contrary, the water spray tangent line at middle part nozzle (9) and left side nozzles (10), the water spray tangential direction of right side nozzles (11) is perpendicular, three nozzles are integrally formed U-shaped and common to the internal water spray of U-shaped；Described water main (3), four-way connection (4), Road water supply arm (5), right wing water supply arm (6), left water supply arm (7), middle part cavity (8), right side cavity (14), left side cavity (12), middle part nozzle (9), left side nozzles (10) and right side nozzles (11) are one-body molded；Described left side nozzles (10), right side nozzles (11), middle part nozzle (9) are all in flat, and the open height of three is identical, and left side nozzles (10) is consistent with the length of right side nozzles (11)；
Form the left side case body in described left side cavity (12), form the middle housing housing at described middle part cavity (8), the right side case body forming described right side cavity (14) collectively constitutes the shell entirety of annular, described left side case body, middle housing housing, right side case body is all in arc-shaped, and its arc radius is identical, a left side for middle housing housing, right two ends are respectively through hinge (15) and left side case body, right side case body is hinged, middle part nozzle (9), left side nozzles (10) is identical with the open height of right side nozzles (11), arc length is equal, the water spray tangent line of three nozzles is on a horizontal plane, the water spray tangential direction of three nozzles is directed to the center of circle of the annulus that three nozzles surround；Described water main (3), four-way connection (4), Road water supply arm (5), middle part cavity (8) and middle part nozzle (9) are one-body molded；Described left side nozzles (10), right side nozzles (11), middle part nozzle (9) are all in flat arcuation, and the open height of three is identical, arc length is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310371545.9A CN103405876B (en) | 2013-08-23 | 2013-08-23 | A kind of water curtain for fire-proof shower nozzle containing combination strip nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310371545.9A CN103405876B (en) | 2013-08-23 | 2013-08-23 | A kind of water curtain for fire-proof shower nozzle containing combination strip nozzle |
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| Publication Number | Publication Date |
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| CN103405876A CN103405876A (en) | 2013-11-27 |
| CN103405876B true CN103405876B (en) | 2016-07-06 |
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| CN201310371545.9A Expired - Fee Related CN103405876B (en) | 2013-08-23 | 2013-08-23 | A kind of water curtain for fire-proof shower nozzle containing combination strip nozzle |
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| Country | Link |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2485402Y (en) * | 2001-02-05 | 2002-04-10 | 林智勇 | Water curtain fireproof door |
| CN201058322Y (en) * | 2007-05-21 | 2008-05-14 | 马积良 | Controllable water screen generating device |
| CN201147732Y (en) * | 2008-01-18 | 2008-11-12 | 杨宝生 | Combined nozzle |
| CN201342391Y (en) * | 2009-01-22 | 2009-11-11 | 林方顺 | Spraying device |
| CN101992154A (en) * | 2009-08-24 | 2011-03-30 | 显示器生产服务株式会社 | Fluid spraying apparatus |
| CN201988082U (en) * | 2011-03-15 | 2011-09-28 | 陈永吉 | Fire extinguishing system for outer wall of high-rise building |
| CN102847622A (en) * | 2011-07-01 | 2013-01-02 | 莱希勒有限公司 | Solid cone nozzle |
| CN203447678U (en) * | 2013-08-23 | 2014-02-26 | 中国科学技术大学 | Sprayer of fire-fighting water curtain comprising combined stripe-like nozzles |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3652919B2 (en) * | 1999-05-14 | 2005-05-25 | 日特建設株式会社 | Spray nozzle |
| US6595675B2 (en) * | 2001-04-23 | 2003-07-22 | Waterway Plastics, Inc. | Pool/spa waterfall unit with fiber optic illumination |
| US6533190B1 (en) * | 2001-08-27 | 2003-03-18 | Yu-Tzu Wang | Sprayer having 3 dimensional water screen |
| US20050011652A1 (en) * | 2003-07-17 | 2005-01-20 | Jinsong Hua | Spray head and nozzle arrangement for fire suppression |
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2013
- 2013-08-23 CN CN201310371545.9A patent/CN103405876B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485402Y (en) * | 2001-02-05 | 2002-04-10 | 林智勇 | Water curtain fireproof door |
| CN201058322Y (en) * | 2007-05-21 | 2008-05-14 | 马积良 | Controllable water screen generating device |
| CN201147732Y (en) * | 2008-01-18 | 2008-11-12 | 杨宝生 | Combined nozzle |
| CN201342391Y (en) * | 2009-01-22 | 2009-11-11 | 林方顺 | Spraying device |
| CN101992154A (en) * | 2009-08-24 | 2011-03-30 | 显示器生产服务株式会社 | Fluid spraying apparatus |
| CN201988082U (en) * | 2011-03-15 | 2011-09-28 | 陈永吉 | Fire extinguishing system for outer wall of high-rise building |
| CN102847622A (en) * | 2011-07-01 | 2013-01-02 | 莱希勒有限公司 | Solid cone nozzle |
| CN203447678U (en) * | 2013-08-23 | 2014-02-26 | 中国科学技术大学 | Sprayer of fire-fighting water curtain comprising combined stripe-like nozzles |
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| CN103405876A (en) | 2013-11-27 |
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