WO2022099879A1 - 一种双层叶片机械自限位式防火风阀 - Google Patents

一种双层叶片机械自限位式防火风阀 Download PDF

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Publication number
WO2022099879A1
WO2022099879A1 PCT/CN2020/139312 CN2020139312W WO2022099879A1 WO 2022099879 A1 WO2022099879 A1 WO 2022099879A1 CN 2020139312 W CN2020139312 W CN 2020139312W WO 2022099879 A1 WO2022099879 A1 WO 2022099879A1
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Prior art keywords
plate
drive
rotating shafts
double
blades
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PCT/CN2020/139312
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English (en)
French (fr)
Inventor
秦伯进
陈华
陈靓
陈兵
杨俊�
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江苏兆胜空调有限公司
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Publication of WO2022099879A1 publication Critical patent/WO2022099879A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/223—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/224—Details of bearings for the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid

Definitions

  • the invention relates to a damper, in particular to a double-layer blade mechanical self-limiting fire damper.
  • the fire damper is a special valve used in the air duct system for the purpose of fire prevention. Fire prevention is realized by the opening and closing of the fire damper valve. The reliability of controlling the opening and closing of the valve is particularly important.
  • the rotating shaft of the traditional fire damper valve plate adopts a cylinder. Or the motor is directly driven to rotate. When the cylinder or motor fails, there is a hidden danger of mis-opening or mis-closing of the valve sheet, which directly affects the safety performance.
  • the invention provides a double-layer blade mechanical self-limiting fire damper which can effectively self-limit the valve plate.
  • the technical scheme adopted in the present invention is: a double-layer blade mechanical self-limiting type fire damper, comprising a valve body, a driving cylinder and a blade, and is characterized in that: the passage section of the valve body is provided with first, second, Three blades, the center positions of the first, second, and third blades are all set with vertical first, second, and third rotating shafts, and the first, second, and third rotating shafts are rotatably supported on the valve body, and the first, second, and third rotating shafts The upper part of the shaft passes through the upper part of the valve body and is connected to the self-limiting device.
  • the self-limiting device includes a base plate, a first drive plate, a horizontal linkage plate, a vertical linkage plate, a third drive plate, and a second conversion plate.
  • plate, the second drive plate, the first, second, and third rotation shafts are connected to the base plate, the first drive plate, the linkage plate, the third drive plate, the second conversion plate, and the second drive plate are placed on the base plate
  • the first or third rotating shaft is connected to the driving cylinder
  • the first and third rotating shafts are respectively fixedly connected to one end of the first and third driving plates
  • the other ends of the first and third driving plates are hinged to the horizontal linkage plate to connect both ends
  • the horizontal linkage plate A vertical linkage plate with one side between the first and second rotating shafts or between the second and third rotating shafts and connected vertically downward, the length of the vertical linkage plate is greater than the length of the first drive plate, the lower end of the vertical linkage plate is hinged to one end of the second conversion plate, the first The other end of the two conversion plates is
  • the base plate is supported on the valve body through the insulating rock wool layer, and the first, second and third rotating shafts pass through the insulating rock wool layer.
  • first, second and third rotating shafts can be divided into upper and lower coaxial shafts, and the upper and lower coaxial shafts are respectively rotatably supported and connected to the upper and lower parts of the valve body channel. .
  • first, second and third blades adopt a double-layer sheet metal hemming to form a plate-like structure.
  • thermally expanded graphite sealing strips are arranged at the overlapping joints of the first, second and third blades in sequence.
  • the present invention uses three blades to open and close the valve body channel, and the rotating shafts of the three blades are driven by a fixed driving plate.
  • the first rotating shaft is driven by the driving cylinder
  • the first rotating shaft is driven by the horizontal linkage plate through the first drive plate
  • the third drive plate drives the third rotating shaft to rotate
  • the vertical linkage plate is driven by the horizontal linkage plate.
  • the second drive plate is driven by the second conversion plate to drive the two rotating shafts to rotate. When the blades are fully opened, the second drive plate drives the other side of the second rotating shaft.
  • the second drive plate and the vertical linkage plate are located in the second rotating shaft On both sides of the shaft, if there is no large external force acting on the first, second and third rotating shafts, even if the damper is in a long-term vibration condition, there is no hidden danger of wrong closing.
  • the overall structure is compact and the limiting effect is stable. It is beneficial to improve the safety of the air valve.
  • Fig. 1 is the structural representation of the present invention
  • FIG. 2 is a schematic structural diagram of the self-limiting device of the present invention in the closed state of the air valve
  • FIG. 3 is a schematic structural diagram of the self-limiting device of the present invention when the air valve is fully opened;
  • Figure 4 is a top sectional view of three blades of the present invention.
  • valve body 1 first blade 2, second blade 3, third blade 4, first rotating shaft 5, second rotating shaft 6, third rotating shaft 7, insulating rock wool layer 8, base plate 9.
  • Horizontal linkage plate 10 vertical linkage plate 11, first drive plate 12, second drive plate 13, third drive plate 14, second conversion plate 15, drive cylinder 16, lap edge 17, thermally expanded graphite sealing strip 18 .
  • a double-layer blade mechanical self-limiting fire damper includes a valve body 1, a first blade 2, a second blade 3, a third blade 4, a first rotating shaft 5, and a second rotating shaft 6.
  • the first, second, and third vanes 2, 3, and 4 are arranged on the passage section of the valve body 1 in sequence, and the vertical first, second, and third rotating shafts 5 and 6 are respectively set at the center positions of the upper and lower ends of the first, second, and third vanes.
  • the first, second, and third rotating shafts are rotatably supported on the valve body, and the upper first, second, and third rotating shafts pass through the insulating rock wool layer 8 on the upper part of the valve body and then pass through the base plate 9 , the first drive plate 12, the second drive plate 13, the third drive plate 14 and the second conversion plate 15 are placed on the base plate, the first rotating shaft 5 is connected to the driving cylinder 16, the first, second and third rotating shafts 5 , 6 and 7 are respectively fixedly connected to one end of the first, second and third drive plates 12, 13 and 14, and the other ends of the first and third drive plates 12 and 14 are hinged to the two ends of the horizontal linkage plate 10.
  • One side of the horizontal linkage plate is between The vertical linkage plate 11 is vertically downwardly connected between the first and second rotating shafts.
  • the length of the vertical linkage plate is greater than the length of the first drive plate. the other end of the conversion plate 13 .
  • the first, second, and third blades of the present invention adopt a double-layer sheet metal hemming forming plate-like structure, and the overlapping edges 17 are arranged at the sealing and abutting positions in sequence.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

一种双层叶片机械自限位式防火风阀，包括阀体（1）、驱动气缸（16）、叶片，所述阀体的通道截面上依次设置第一、二、三叶片（2,3,4），第一、二、三叶片的中心位置均设置垂直的第一、二、三旋转轴（5,6,7），第一、二、三旋转轴旋转支撑穿接在阀体上，第一、二、三旋转轴的上部穿出阀体上部并穿接在自限位装置上，所述自限位装置包括基座板（9）、第一驱动板（12）、水平联动板（10）、垂直联动板（11）、第三驱动板（14）、第二转换板（15）、第二驱动板（13），第一、二、三旋转轴穿接在基座板上，第一或第三旋转轴接驱动气缸，第一、三旋转轴分别固定穿接第一、三驱动板一端，第一、三驱动板另一端铰接水平联动板两端，水平联动板一侧介于第一、二旋转轴之间或第二、三旋转轴之间垂直向下连接的垂直联动板，垂直联动板长度大于第一驱动板长度，垂直联动板下端铰接第二转换板一端，第二转换板另一端铰接第二驱动板一端，第二驱动板另一端固定穿接第二旋转轴。该风阀能有效对阀门阀片进行自限位。

Description

一种双层叶片机械自限位式防火风阀 技术领域
本发明涉及一种风阀，具体说是一种双层叶片机械自限位式防火风阀。
背景技术
防火风阀是风管系统中用于防火漫延目的的专用阀门，通过防火风阀阀门的启闭实现防火，控制阀门启闭的可靠性尤为重要，传统的防火风阀阀片的旋转轴采用气缸或电机直接驱动旋转，在气缸或电机发生故障时，阀片存在误开或误关隐患，直接影响使用安全性能。
发明内容
本发明提供了一种能有效对阀门阀片进行自限位的双层叶片机械自限位式防火风阀。
本发明采用的技术方案是：一种双层叶片机械自限位式防火风阀，包括阀体、驱动气缸、叶片，其特征在于：所述阀体的通道截面上依次设置第一、二、三叶片，第一、二、三叶片的中心位置均设置垂直的第一、二、三旋转轴，第一、二、三旋转轴旋转支撑穿接在阀体上，第一、二、三旋转轴的上部穿出阀体上部并穿接在自限位装置上，所述自限位装置包括基座板、第一驱动板、水平联动板、垂直联动板、第三驱动板、第二转换板、第二驱动板，第一、二、三旋转轴穿接在基座板上，第一驱动板、联动板、第三驱动板、第二转换板、第二驱动板置于基座板上，第一或第三旋转轴接驱动气缸，第一、三旋转轴分别固定穿接第一、三驱动板一端，第一、三驱动板另一端铰接水平联动板连接两端，水平联动板一侧介于第一、二旋转轴之间或第二、三之间垂直向下连接的垂直联动板，垂直联动板长度大于第一驱动板长度，垂直联动板下端铰接第二转换板一端，第二转换板另一端铰接第二转换板一端，第二转换板另一端固定穿接第二旋转轴。
进一步地，基座板经隔热岩棉层支撑在阀体上，第一、二、三旋转轴穿过隔热岩棉层。
进一步地，第一、二、三旋转轴可分体成上、下两段同轴线的轴体，上、下两段同轴线的轴体分别旋转支撑穿接在阀体通道上、下部。
进一步地，第一、二、三叶片采用双层钣金折边成型板状结构。
进一步地，第一、二、三叶片依次搭接处设置热膨胀石墨密封条。
本发明采用三只叶片启闭阀体通道，三只叶片的旋转轴均经固定穿接的驱动板驱动，在叶片关闭时，垂直联动板、第二转换板和第二驱动板位于第二旋转轴一侧，开启作业时，由驱动气缸驱动第一旋转轴，第一旋转轴经第一驱动板由水平联动板驱动第三驱动板带动第三旋转轴旋转，垂直联动板在水平联动板带动下经第二转换板驱动第二驱动板驱动二旋转轴旋转，当叶片完全打开时，第二驱动板驱动之第二旋转轴另一侧，第二驱动板与垂直联动板分别位于第二旋转轴两侧，此时如无较大的外力作用在第一、二、三旋转轴上，即便风阀整体处于长期振动工况下，也无误关隐患，整体结构紧凑，限位效果稳定，有利于提高风阀使用安全性。
附图说明
图1为本发明结构示意图；
图2为本发明自限位装置在风阀关闭状态结构示意图；
图3为本发明自限位装置在风阀完全打开状态结构示意图；
图4为本发明三只叶片的俯视截面图。
图中：阀体1、第一叶片2、第二叶片3、第三叶片4、第一旋转轴5、第二旋转 轴6、第三旋转轴7、隔热岩棉层8、基座板9、水平联动板10、垂直联动板11、第一驱动板12、第二驱动板13、第三驱动板14、第二转换板15、驱动气缸16、搭接边17、热膨胀石墨密封条18。
具体实施方式
以下结合实施例和附图对本发明作进一步说明。
图1‐3所示：一种双层叶片机械自限位式防火风阀包括阀体1、第一叶片2、第二叶片3、第三叶片4、第一旋转轴5、第二旋转轴6、第三旋转轴7、隔热岩棉层8、基座板9、水平联动板10、垂直联动板11、第一驱动板12、第二驱动板13、第三驱动板14、第二转换板15、驱动气缸16、搭接边17、热膨胀石墨密封条18。阀体1的通道截面上依次设置第一、二、三叶片2、3、4，第一、二、三叶片的上下端中心位置均分别设置垂直的第一、二、三旋转轴5、6、7，第一、二、三旋转轴旋转支撑穿接在阀体上，上部的第一、二、三旋转轴穿出阀体上部隔热岩棉层8后穿接在基座板9上，第一驱动板12、第二驱动板13、第三驱动板14、第二转换板15置于基座板上，第一旋转轴5接驱动气缸16，第一、二、三旋转轴5、6、7分别固定穿接第一、二、三驱动板12、13、14一端，第一、三驱动板12、14另一端铰接水平联动板10连接两端，水平联动板一侧介于第一、二旋转轴之间垂直向下连接的垂直联动板11，垂直联动板长度大于第一驱动板长度，垂直联动板下端铰接第二转换板15一端，第二转换板另一端铰接第二转换板13另一端。
本发明第一、二、三叶片采用双层钣金折边成型板状结构，且在依次密封靠接处设置搭接边17，第一、二、三叶片依次搭接处设置对应相邻两叶片对接处或搭接边的热膨胀石墨密封条18。

Claims (5)

  1. 一种双层叶片机械自限位式防火风阀，包括阀体、驱动气缸、叶片，其特征在于：所述阀体的通道截面上依次设置第一、二、三叶片，第一、二、三叶片的中心位置均设置垂直的第一、二、三旋转轴，第一、二、三旋转轴旋转支撑穿接在阀体上，第一、二、三旋转轴的上部穿出阀体上部并穿接在自限位装置上，所述自限位装置包括基座板、第一驱动板、水平联动板、垂直联动板、第三驱动板、第二转换板、第二驱动板，第一、二、三旋转轴穿接在基座板上，第一驱动板、联动板、第三驱动板、第二转换板、第二驱动板置于基座板上，第一或第三旋转轴接驱动气缸，第一、三旋转轴分别固定穿接第一、三驱动板一端，第一、三驱动板另一端铰接水平联动板连接两端，水平联动板一侧介于第一、二旋转轴之间或第二、三之间垂直向下连接的垂直联动板，垂直联动板长度大于第一驱动板长度，垂直联动板下端铰接第二转换板一端，第二转换板另一端铰接第二转换板一端，第二转换板另一端固定穿接第二旋转轴。
  2. 根据权利要求1所述的一种双层叶片机械自限位式防火风阀，其特征是：所述基座板经隔热岩棉层支撑在阀体上，第一、二、三旋转轴穿过隔热岩棉层。
  3. 根据权利要求1所述的一种双层叶片机械自限位式防火风阀，其特征是：所述第一、二、三旋转轴可分体成上、下两段同轴线的轴体，上、下两段同轴线的轴体分别旋转支撑穿接在阀体通道上、下部。
  4. 根据权利要求1所述的一种双层叶片机械自限位式防火风阀，其特征是：所述第一、二、三叶片采用双层钣金折边成型板状结构。
  5. 根据权利要求1所述的一种双层叶片机械自限位式防火风阀，其特征是：所述第一、二、三叶片依次搭接处设置热膨胀石墨密封条。
PCT/CN2020/139312 2020-11-11 2020-12-25 一种双层叶片机械自限位式防火风阀 WO2022099879A1 (zh)

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