EP1029558A1 - Brandschutzventil - Google Patents

Brandschutzventil Download PDF

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Publication number
EP1029558A1
EP1029558A1 EP00400433A EP00400433A EP1029558A1 EP 1029558 A1 EP1029558 A1 EP 1029558A1 EP 00400433 A EP00400433 A EP 00400433A EP 00400433 A EP00400433 A EP 00400433A EP 1029558 A1 EP1029558 A1 EP 1029558A1
Authority
EP
European Patent Office
Prior art keywords
rod
valve
return spring
valve according
spring
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP00400433A
Other languages
English (en)
French (fr)
Other versions
EP1029558B1 (de
Inventor
Wilhelm Paul Strulik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1029558A1 publication Critical patent/EP1029558A1/de
Application granted granted Critical
Publication of EP1029558B1 publication Critical patent/EP1029558B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/18—Sliding dampers
    • A62C2/20—Sliding dampers at 90 degrees to the plane of the opening
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/241—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts
    • A62C2/242—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts with fusible links

Definitions

  • the present invention relates to an aeration valve, likely to close depending on the air temperature the crossing, so as not to spread fires and smokers.
  • Figure 1 attached shows an example of a valve known ventilation, described in the French patent application FR-A-2 371 557.
  • This valve comprises a body 10, which forms a seat of valve 12.
  • the body 10 is embedded in a wall and connected to a conduit air vent C.
  • the shutter 14 intended to cooperate with the valve seat 12 so as to prevent the passage of air through the body 10.
  • a rod 16 is secured, at one of its ends, to the shutter 14.
  • the free end of the rod 16, oriented towards the duct C comprises mechanical stop means 18.
  • a bore 19 is formed in the end of the rod 16 located beyond the stop means mechanical 18, towards the ventilation duct C.
  • the rod 16 is held in a substantially central position and parallel to the axis of the seat of valve 12 by a cross 17.
  • the spider 17 has a threaded central part 17A intended to cooperate with the external thread 22 of a socket adjustment 20.
  • the adjustment sleeve 20 is screwed into the central part 17A of the spider 17.
  • the rod 16, integral with the shutter 14 is introduced into the through the adjustment sleeve 20, its free end projecting towards the conduit C.
  • the adjustment sleeve 20 therefore makes it possible both to position and guide the rod 16 and adjust the open position of the shutter 14 relative to the seat 12.
  • the portion of the rod 16, between the end 21 of the adjusting sleeve 20 and the mechanical stop means 18, is surrounded by a return spring 23.
  • the return spring 23 When the valve is open, as is the case in FIG. 1, the return spring 23 is compressed, one end return spring 23 bearing on the stop means mechanical 18, the other end resting on the end 21 of the adjusting sleeve 20.
  • the means forming the trigger system 24 of the valve consist of a lug 25 integral with the adjustment sleeve 20 and disposed near the end 21 of the socket 20.
  • This tab 25 is connected to a fuse element 30; the element fuse 30 being, itself, connected to bore 19, located at the rear of the stop means 18, by means of a rod 32.
  • a lock nut 40 cooperating with the thread 22 of the sleeve regale 20 allows to block the position of the socket 20, in the part central 17A of the cross 17.
  • the presence of the fuse element 30 therefore maintains the spring return 23 in a compressed state, between the stop means 18 and the end 21 of the sleeve 20.
  • the resistance properties fuse element 30 change causing it to break, less partial, which thus causes the return spring 23 to relax.
  • the return spring 23 bears on the end 21 of the adjustment sleeve 20 which is itself immobilized with respect to the spider 17. This end of the spring is therefore immobilized.
  • the second end of the return spring pushes on the stop means mechanical 18 which are arranged on the rod 16 which is movable. Relaxation the return spring 23 causes the displacement of the rod 16 towards the air duct C, which causes the valve to close, the shutter 14 being driven towards the conduit C and thus blocking the seat valve 12.
  • the return spring 23 being disposed at the rear of the sleeve setting 20, the rod 16 must be long enough to allow the installation at its free end, of the return spring 23 and the means forming a fuse 24.
  • the length of the rod 16 can be troublesome. Indeed, either it is impossible to install the valve, the space between the air duct C and the body of valve 10 not allowing the introduction of the rod 16, ie the rod 16 risk of damaging the ventilation duct C when the spring is released 23.
  • the ventilation duct C may also interfere with the relaxation of the return spring thus preventing the correct closing of the valve.
  • valve insufficient closing pressure regardless of air temperature entering through valve seat 12.
  • the valve insufficiently closed is liable, by a lack of sealing, to contribute to the spread of the fire or fire.
  • valves should be subject to periodic technical checks. It is therefore important to have valves designed in such a way that they no longer require these controls.
  • the aim of the present invention is to solve the problems techniques related to the use of prior art valves.
  • said spring booster is, in compressed state, at least partially contained inside of said adjusting sleeve, the first end of said adjusting sleeve adjustment comprising a rim, serving as a support at one end of said return spring, when it is released, the other end of said spring being secured to the second end of the rod, whereby the entire length of the adjustment sleeve is used to receive the return spring.
  • the bulk longitudinal due to the assembly constituted by the bush and the return spring is very significantly reduced. This gives more freedom to choose the shutter stroke, the closing speed and especially the pressure of closing.
  • the spring in the compressed state, is fully contained in the adjustment sleeve and preferably also the second end of the socket is closed.
  • the spring is fully contained in the adjustment sleeve and preferably also the second end of the socket is closed.
  • This type of fuse means is simple to produce and has the advantage of occupying a more restricted space than the means forming prior art fuse.
  • a shorter rod can be used to connect the shutter to the fuse means.
  • the fusible link element must maintain the compression of the spring, when the temperature of the air passing through the valve does not exceed its melting temperature.
  • the choice of material constitutive of this element is, therefore, decisive.
  • the means forming fuse include a cover on which the free end of the rod, and intended to close, at least partially, the opening of the sleeve adjustment located opposite the ventilation duct and fixing means temporary fuses of this cover on the open end of the socket setting.
  • fixing means are liable to give way when the temperature of the air entering the valve seat exceeds one determined temperature. The compressed return spring inside the adjusting sleeve, closed by the cover, is thus protected from air exterior and therefore protected from any risk of corrosion.
  • the fixing means cover have a part with a fixing surface mounted on the adjustment sleeve, the cover being fixed on the surface of fixing of the part by means of an adhesive material capable to melt at a certain temperature.
  • the presence of the cover closing off the bush allows to hermetically seal the spring inside the adjustment sleeve.
  • the part consists of a nut comprising an internal thread capable of cooperating with the external thread of the sleeve adjustment.
  • the cover completely covers the opening of the adjustment sleeve, in order to obtain effective protection of the spring reminder.
  • the valve according to the present invention includes a valve body 100, forming a valve seat 120. Either the valve is embedded in a wall and connected to a conduit ventilation C, or one end of the duct is engaged in an orifice the wall and the body of the valve is fitted into the end of the conduit.
  • a shutter 140 is mounted inside the valve body.
  • the shutter 140 has a shape adapted to cooperate with a portion of valve seat 120 to prevent air from entering in the valve, in the closed position.
  • a rod 160 in one piece is secured by one of its ends, to the shutter 140.
  • Support means 170 comprising a central portion 170A threaded and at least two connected arms to the body 100, keep the rod 160 substantially in the center of the valve seat 120 and parallel to its axis.
  • An adjustment socket 200 with an external thread 220 is screwed into the central part 170A having an internal thread.
  • the rod 160 passes through the adjustment sleeve 200 and is thus held at inside the valve seat 120.
  • the free end of the rod 160, located opposite the conduit C includes, as standard, mechanical stop means 180 which may consist of an attached washer.
  • a return spring 230 surrounds the rod 160 and is supported, when it is compressed on the mechanical stop means 180 and on a flange 202 located inside the adjustment sleeve 200.
  • the means forming fuse 240 have a first tab 250 mounted close to the free end of the socket 210 and a second tab 260, fixed to the end of the rod 160.
  • This second tab 260 can also, depending on its mode of attachment to the rod 160, act as a means of stop 180.
  • the fuse element 300 comprises two non-fusible parts 302 and 304 provided with orifices 306 and 308 each capable of receiving the end of one of the legs 250 and 260.
  • the two parts 302 and 304 are connected together by a 300A layer of a fusible material at the predetermined temperature.
  • a fusible material at the predetermined temperature.
  • he can be a welding or soldering material or an adhesive having a very low softening share.
  • Figure 3 shows the thermal trip means when the fuse element has blown and the return spring 230 is relaxed. Because part of the spring is contained in the bushing, the distance between the bearing face 202 of the sleeve and the end 180 of the rod is reduced compared to previous solutions.
  • a nut 400 is fitted to the external surface of the bush 200 making it possible to immobilize the bush relative to the part central 170A support means.
  • FIG. 5 represents a second embodiment of the thermal trip means.
  • the rod 160 comprises, at its free end, mechanical stop means 180 which can be, for example, a collar, as shown in FIG. 4.
  • the return spring 230 partially surrounds the rod 160 and is supported, at one of its ends, on the internal rim 202 of the socket 200 and, by its other end, on the stop means mechanical 180.
  • the end 210 of the socket 200 is equipped with a threaded nut 600 cooperating with thread 220 of the adjusting sleeve 200.
  • a cover 500 is intended to close the open end of the socket 200. It can be perforated or completely cover the end socket 200 open.
  • the cover 500 and the nut 600 are joined by a layer of an adhesive material 700, fusible from a determined temperature and interposed between a fixing surface 602 of the nut and the cover.
  • the socket 220 is equipped with a stop mechanical 604 to limit the screwing of the fuse element constituted by nut 600 and cover 500 during assembly of the thermal release.
  • the adhesive material can be a weld, solder or glue.
  • the material 700 melts or at least softens enough to lose mechanical properties of joining of the two parts; under the thrust of the return spring 230, the cover 500 detaches from the nut 600 which causes the relaxation of spring 230.
  • the spring bearing both on the flange 202 and on the stop means 180, relaxes, tearing off the cover 500 and pulling backward shutter 140, which has the effect of closing the valve.
  • This embodiment provides protection optimal return spring.
  • a 400 nut also equips the surface of the adjustment bush 200 in order to block the position of the adjustment bush 200 inside the central part 170A of the means support 170.
  • the body 100 and the shutter 140 are preferably made with a fire-resistant material which may be provided with a coating of insulating material to limit thermal conduction.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Check Valves (AREA)
  • Magnetically Actuated Valves (AREA)
  • Temperature-Responsive Valves (AREA)
EP00400433A 1999-02-17 2000-02-16 Brandschutzventil Expired - Lifetime EP1029558B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9901911 1999-02-17
FR9901911A FR2789745B1 (fr) 1999-02-17 1999-02-17 Soupape de protection contre l'incendie

Publications (2)

Publication Number Publication Date
EP1029558A1 true EP1029558A1 (de) 2000-08-23
EP1029558B1 EP1029558B1 (de) 2006-01-18

Family

ID=9542125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00400433A Expired - Lifetime EP1029558B1 (de) 1999-02-17 2000-02-16 Brandschutzventil

Country Status (5)

Country Link
EP (1) EP1029558B1 (de)
AT (1) ATE315952T1 (de)
DE (1) DE60025577T2 (de)
ES (1) ES2255951T3 (de)
FR (1) FR2789745B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3372914A3 (de) * 2017-02-17 2018-12-12 FläktGroup Sweden AB Entlüftungsventil und verfahren zur messung des luftstroms aus dem entlüftungsventil
CN109185520A (zh) * 2018-11-06 2019-01-11 陈开兵 一种组合式烟道防火止回阀
CN113217674A (zh) * 2021-04-09 2021-08-06 东莞市金尔来电子科技有限公司 一种阀门

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107559434B (zh) * 2015-08-24 2019-10-18 中高(泰州)知识产权管理咨询有限公司 消防通风管道阀门通风板

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1061548A (en) * 1965-07-22 1967-03-15 Gustaf Harald Bodin Improvements in or relating to valve devices for ventilation ducts
US4055829A (en) * 1975-03-03 1977-10-25 Elsie Manufacturing Company Fusible links and process for producing same
FR2371557A1 (fr) 1976-11-20 1978-06-16 Strulik Wilhelm Soupape de protection contre l'incendie
US4208032A (en) * 1976-11-18 1980-06-17 Mineur-Becourt SA Closing device with valve having a high speed reaction
GB2249479A (en) * 1990-10-19 1992-05-13 Gilberts Fire damper
US5120152A (en) * 1990-06-25 1992-06-09 Carmen Gueli Fusible link

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1061548A (en) * 1965-07-22 1967-03-15 Gustaf Harald Bodin Improvements in or relating to valve devices for ventilation ducts
US4055829A (en) * 1975-03-03 1977-10-25 Elsie Manufacturing Company Fusible links and process for producing same
US4208032A (en) * 1976-11-18 1980-06-17 Mineur-Becourt SA Closing device with valve having a high speed reaction
FR2371557A1 (fr) 1976-11-20 1978-06-16 Strulik Wilhelm Soupape de protection contre l'incendie
US5120152A (en) * 1990-06-25 1992-06-09 Carmen Gueli Fusible link
GB2249479A (en) * 1990-10-19 1992-05-13 Gilberts Fire damper

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3372914A3 (de) * 2017-02-17 2018-12-12 FläktGroup Sweden AB Entlüftungsventil und verfahren zur messung des luftstroms aus dem entlüftungsventil
CN109185520A (zh) * 2018-11-06 2019-01-11 陈开兵 一种组合式烟道防火止回阀
CN109185520B (zh) * 2018-11-06 2024-05-07 陈开兵 一种组合式烟道防火止回阀
CN113217674A (zh) * 2021-04-09 2021-08-06 东莞市金尔来电子科技有限公司 一种阀门

Also Published As

Publication number Publication date
DE60025577T2 (de) 2006-09-14
FR2789745A1 (fr) 2000-08-18
ATE315952T1 (de) 2006-02-15
DE60025577D1 (de) 2006-04-06
ES2255951T3 (es) 2006-07-16
EP1029558B1 (de) 2006-01-18
FR2789745B1 (fr) 2001-05-04

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