WO2014000472A1 - 减压阀 - Google Patents

减压阀 Download PDF

Info

Publication number
WO2014000472A1
WO2014000472A1 PCT/CN2013/072931 CN2013072931W WO2014000472A1 WO 2014000472 A1 WO2014000472 A1 WO 2014000472A1 CN 2013072931 W CN2013072931 W CN 2013072931W WO 2014000472 A1 WO2014000472 A1 WO 2014000472A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
valve
pressure reducing
reducing valve
hole
Prior art date
Application number
PCT/CN2013/072931
Other languages
English (en)
French (fr)
Inventor
王世忠
郑才林
谷全会
王立平
Original Assignee
宁波亚德客自动化工业有限公司
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 宁波亚德客自动化工业有限公司 filed Critical 宁波亚德客自动化工业有限公司
Publication of WO2014000472A1 publication Critical patent/WO2014000472A1/zh

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
    • G05D16/163—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using membranes within the main valve

Definitions

  • the present invention relates to a valve, and more particularly to a precision pressure reducing valve.
  • a pressure reducing valve is a valve that adjusts the inlet pressure to a desired outlet pressure and relies on the energy of the medium to automatically maintain the outlet pressure.
  • Cipheral Patent Publication No. CN1090350C discloses a pressure reducing valve including a main body portion, a valve cover portion, an operation portion having a hand wheel, a first diaphragm, a second diaphragm, a third diaphragm, and a fourth diaphragm, all of which are They are disposed within the body portion at a predetermined interval from each other, and a nozzle and a valve flap are disposed in the third diaphragm chamber.
  • the steel ball of the pressure reducing valve is fixed on the three-legged elastic piece as a baffle of the nozzle mouth.
  • the steel ball floats between the nozzle and the diaphragm with the three-legged elastic piece, and the automatic resetting performance of the steel ball is better, but the diaphragm is poorly reset. Moreover, the steel ball is held in the middle of the three-legged shrapnel, which is difficult to process.
  • Chinese Patent Publication No. CN201925552U discloses a pressure reducing valve including a main body, a valve cover portion, an operation portion, an upper diaphragm assembly, a secondary diaphragm, a middle diaphragm, a lower diaphragm assembly, a nozzle body, a steel ball shrapnel
  • the main valve body has a plurality of pressure outflow ports formed in a rectangular parallelepiped shape, and the whole of the valve cover portion is connected to the upper portion of the main body, and a spring is disposed inside the valve cover, and the operation portion is connected with the upper portion of the valve cover portion, and the upper diaphragm is
  • the component, the sub-membrane, the intermediate diaphragm and the lower diaphragm assembly are laterally disposed apart from each other at a set interval, and the nozzle body and the steel dome are disposed between the secondary diaphragm and the intermediate diaphragm, and the main spool is disposed at
  • the same steel ball floats between the nozzle and the diaphragm with the three-legged elastic piece, and the steel ball automatically resets the performance better, but the steel ball is hung in the middle of the three-legged elastic piece, and the processing is difficult.
  • Chinese Patent Publication No. CN1196511A discloses a pressure reducing valve having a pressure reducing valve seat shaped as a cylindrical sleeve with a bottom, a seat disposed on an inner wall surface of the pressure reducing valve seat, and a seat A pressure reducing valve mechanism having a pressure reducing passage defined in the pressure reducing valve seat when opening and closing the seat.
  • the steel ball in the pressure reducing valve is fixed on the diaphragm assembly as a baffle for the nozzle opening.
  • the steel ball moves together with the diaphragm, so there is no problem of steel ball resetting, but the steel ball is fixed on the diaphragm, which is difficult Controlling the concentricity with the nozzle, and the compact of the fixed steel ball is difficult to process, the compact is inconvenient to assemble, and the weight of the diaphragm assembly is increased, which is not conducive to precise pressure regulation.
  • An object of the present invention is to provide a pressure reducing valve having a good concentricity of a steel ball and a nozzle and a good reset of the steel ball to solve the problems in the background art.
  • a pressure reducing valve comprising a valve body portion, a valve cover portion is connected to the valve body portion, and the valve body portion is provided with a rotatable and passing through An operation portion of the valve cover portion, wherein the valve body portion is provided with a diaphragm assembly, a nozzle and a valve flap that can open and close the nozzle opening under the back pressure in the nozzle back pressure chamber, the valve flap is located above the nozzle opening, and a compression spring is disposed between the valve flap and the nozzle, and the compression spring Coaxial with the nozzle port, the nozzle is also connected with a limiting structure for defining the valve flap to move upward to a predetermined position by the compression spring, and the top of the valve flap can protrude through the limiting structure.
  • the design idea of the technical solution is: adding a spring between the valve flap and the nozzle to ensure a good reset of the valve flap, and the compression spring is coaxial with the nozzle mouth to ensure the concentricity of the valve flap and the nozzle, so that the valve flap does not fall off the spring
  • a limit structure is designed, and the valve body is restrained by the limit structure and the compression spring.
  • the nozzle is disposed on the nozzle body, and a compression spring is disposed between the diaphragm assembly and the nozzle body.
  • a compression spring is also provided between the diaphragm assembly and the nozzle body to maintain the diaphragm assembly at a predetermined distance from the valve flap and to achieve a quick reset of the diaphragm assembly.
  • the limiting structure comprises a cylindrical column closed at the top end of the upper end surface of the nozzle body, and the end surface of the cylinder body is provided with a through hole allowing the top of the valve flap to pass through and distributed around the through hole
  • the air hole is coaxial with the nozzle opening.
  • the limiting structure comprises a plurality of support plates disposed on the upper end surface of the nozzle body and a baffle disposed on the top of the plurality of support plates, and the baffle surface is provided with a passage allowing the top of the valve flap to pass through a hole, the through hole being coaxial with the nozzle opening.
  • This is another type of limiting structure. Since the two supporting plates are not closed, the air flow is unimpeded, so there is no need to open holes in the baffle.
  • the plurality of support plates are evenly distributed in the circumferential direction of the nozzle opening.
  • the circumferentially evenly supported support plate forces the top baffle evenly.
  • valve flap is a steel ball.
  • the lower side of the through hole is chamfered.
  • the chamfering of the lower side of the through hole allows for better guiding of the steel ball and avoids scratching the surface of the steel ball.
  • the utility model has the beneficial effects that the steel ball and the nozzle mouth have good concentricity, and the steel ball and the diaphragm assembly are all reset well.
  • Embodiment 1 is a cross-sectional view of a pressure reducing valve in Embodiment 1;
  • Figure 2 is an enlarged schematic view of a portion A in Figure 1;
  • Figure 3 is a perspective view showing the nozzle at the embodiment 1;
  • Figure 4 is a cross-sectional view of the pressure reducing valve of Embodiment 2;
  • Figure 5 is an enlarged schematic view of a portion B in Figure 4;
  • Figure 6 is a perspective view of the nozzle in the second embodiment.
  • valve body portion 2. bonnet portion 3. operating portion 4. diaphragm assembly 5. nozzle body 6. nozzle 7. first diaphragm 8. second diaphragm 9. a compression spring 10. steel ball 11. second compression spring 12. cylinder 13. top cover 14. first side road 15. feedback path 16. second side road 17. pressure spring 18. main valve core 19. Support plate 20. Baffle 21. Nozzle back pressure chamber. detailed description
  • a pressure reducing valve as shown in FIGS. 1 to 3, includes a valve body portion 1, and a valve cover portion 2 is connected to the valve body portion 1, and the valve body portion 1 is provided with a rotatable and passing through the valve cover 2
  • the valve body portion 1 is provided with a first diaphragm 7, a diaphragm assembly 4, a nozzle body 5, and a nozzle 6 disposed on the nozzle body 5, and a second diaphragm 8 is disposed in the diaphragm assembly 4,
  • a first compression spring 9 is disposed between the diaphragm assembly 4 and the nozzle body 5, and a steel ball 10 is disposed above the nozzle opening.
  • a second compression spring 11 is disposed between the steel ball 10 and the nozzle 6, and the nozzle body 5 is disposed.
  • the end surface is provided with a cylindrical column 12, the top of the column 12 is closed by the top cover 13 and the second compression spring 11 and the steel ball 10 are enclosed, the through hole is opened in the middle of the top cover 13, and the air hole is distributed around the through hole.
  • the through hole, the nozzle opening and the second compression spring 11 are coaxial, and the top of the steel ball 10 can pass through the through hole and protrude from the upper surface of the top cover 13 but cannot be detached, and the lower side of the through hole is provided Chamfering.
  • the pressure regulating spring 17 When the operation portion 3 is rotated clockwise, the pressure regulating spring 17 is compressed, the diaphragm assembly 4 pushes the steel ball 10 downward, and the opening degree of the nozzle 6 is reduced, and the input airflow flows into the upper chamber of the first diaphragm 7 through the first side passage 14.
  • the back pressure is generated by the amplification of the nozzle 6 to form the nozzle back pressure chamber 21, and the back pressure pushes the first diaphragm 7 downward to open the main spool 18, and the air outlet outputs airflow; the output airflow is feedbackd on the one hand.
  • the passage 15 acts on the lower chamber of the first diaphragm 7 to balance the pressure with the upper chamber; on the other hand, the output airflow passes through the second side passage 16 into the lower chamber of the second diaphragm 8, and is balanced with the pressure regulating spring 17, Maintain constant outlet pressure;
  • a pressure reducing valve differs from the first embodiment in that: the upper end surface of the nozzle body 5 is not the cylinder 12 but three support plates perpendicular to the nozzle body 5. 19, three support plates 19 are evenly distributed in the circumferential direction of the nozzle opening, the top of the three support plates 19 is connected with a baffle 20, and the baffle 20 is provided with a through hole on the surface thereof, and the through hole and the top cover 13 in the first embodiment
  • the upper through holes are the same, and the through holes are coaxial with the nozzle openings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Safety Valves (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

一种减压阀，包括阀体部（1），阀体部（1）上连接有阀盖部（2），所述阀体部（1）内设有可转动的并穿过阀盖部（2）的操作部（3），所述阀体部（1）内设有膜片组件（4）、喷嘴（6）以及在喷嘴背压室（21）中的背压作用下可控制喷嘴口开闭的阀瓣，阀瓣位于喷嘴口的上方，所述阀瓣与喷嘴（6）之间设有压缩弹簧，所述压缩弹簧与喷嘴口同轴，所述喷嘴（6）上还连接有用于限定阀瓣在压缩弹簧作用下向上移动至预定位置的限位结构，所述阀瓣的顶部可穿过限位结构而伸出。该减压阀能够取得钢珠与喷嘴口同心度好、钢珠与膜片组件均复位良好的效果，适宜推广使用。

Description

减压阀 技术领域
[0001] 本发明涉及一种阀， 尤其涉及一种精密减压阀。
背景技术
[0002] 减压阀是通过调节， 将进口压力减至某一需要的出口压力， 并依靠介质本身的能量， 使出口压力自动保持稳定的阀门。
[0003] 中国专利公告号 CN1090350C 公开了一种减压阀， 包括主体部、 阀盖部、 具有手轮 的操作部、 第一隔膜、 第二隔膜、 第三隔膜以及第四隔膜， 所有这些隔膜都相互隔预定的间 距设于主体部之内， 而在第三隔膜室之中设有喷嘴和阀瓣。该减压阀的钢珠固定在三脚弹片 上用作喷嘴口的挡板， 此种结构中， 钢珠随三脚弹片浮动于喷嘴和膜片之间， 钢珠自动复位 性能比较好， 但是膜片复位不良， 而且钢珠被抱于三脚弹片中间， 加工比较困难。
[0004] 中国专利公告号 CN201925552U公开了一种减压阀， 包括主体、 阀盖部、 操作部、 上膜片组件、 次膜片、 中膜片、 下膜片组件、 喷嘴体、 钢珠弹片、 主阀芯， 所述主体形成长 方体状具有多个压力流出口， 阀盖部的整体与主体上部相连， 在阀盖内部设置一弹簧， 所述 操作部与阀盖部的上部连接， 上膜片组件、 次膜片、 中膜片与下膜片组件按设定间隔互相分 开横向设置在主体内， 喷嘴体与钢珠弹片设置在次膜片与中膜片之间， 主阀芯设置在主体下 端部。 该减压阀的结构中， 同样是钢珠随三脚弹片浮动于喷嘴和膜片之间， 钢珠自动复位性 能比较好， 但是钢珠被抱于三脚弹片中间， 加工比较困难。
[0005] 中国专利公开号 CN1196511A 公开了一种减压阀， 其具有一个形状为带底部的圆筒 形套筒的减压阀座、一个设置在减压阀座的内壁面上的座和一个减压阀机构， 其具有一个当 离开和抵靠座时打开和闭合一条限定在减压阀座中的减压通道。该减压阀中的钢珠固定在膜 片组件上用作喷嘴口的挡板， 此种结构中， 钢珠随膜片一起运动， 所以不存在钢珠复位的问 题， 但钢珠固定在膜片上， 难以控制其与喷嘴的同心度， 而且固定钢珠的压块难以加工， 压 块不方便组装， 同时增加了膜片组件的重量， 不利于精密调压。
发明内容
[0006] 本发明的目的在于提供一种钢珠与喷嘴同心度好、钢珠复位良好的减压阀， 以解决背 景技术中存在的问题。
[0007] 为了实现上述目的， 本发明的技术方案是： 一种减压阀， 包括阀体部， 阀体部上连接 有阀盖部，所述阀体部内设有可转动的并穿过阀盖部的操作部，所述阀体部内设有膜片组件、 喷嘴以及在喷嘴背压室中的背压作用下可控制喷嘴口开闭的阀瓣， 阀瓣位于喷嘴口的上方， 所述阀瓣与喷嘴之间设有压縮弹簧， 所述压縮弹簧与喷嘴口同轴， 所述喷嘴上还连接有用于 限定阀瓣在压縮弹簧作用下向上移动至预定位置的限位结构，所述阀瓣的顶部可穿过限位结 构而伸出。 该技术方案的设计思路是： 在阀瓣与喷嘴之间增设弹簧， 保证阀瓣的良好复位， 同时压縮弹簧与喷嘴口同轴可保证阀瓣与喷嘴的同心度， 为了阀瓣不脱离弹簧， 就设计了一 限位结构， 利用该限位结构和压縮弹簧把阀瓣限制在其间， 调压时， 操作部需要将膜片组件 下移并将阀瓣压下减小喷嘴口的开度， 因此要求阀瓣的顶部可穿过限位结构而伸出。该减压 阀中， 阀瓣与喷嘴口同心度好， 阀瓣复位良好。
[0008] 作为优选， 所述喷嘴设于喷嘴本体上， 所述膜片组件与喷嘴本体之间设有压縮弹簧。 在膜片组件与喷嘴本体之间也设有压縮弹簧， 可使膜片组件与阀瓣保持预定距离， 同时可实 现膜片组件的快速复位。
[0009] 作为优选，所述限位结构包括设于喷嘴本体上端面的顶端封闭的筒状柱体，柱体的端 面上设有可允许阀瓣顶部穿过的通孔以及分布于通孔周围的气孔， 所述通孔与喷嘴口同轴。 此为限位结构的一种，采用了顶端封闭的筒状柱体，而由于封闭的原因，就在顶端开有气孔。
[0010] 作为优选，所述限位结构包括设于喷嘴本体上端面的多个支撑板以及设于多个支撑板 顶部的挡板， 挡板表面上设有可允许阀瓣顶部穿过的通孔， 所述通孔与喷嘴口同轴。 此为限 位结构的另一种， 由于采用了未封闭的两支撑板， 气流通畅无阻， 故不需要在挡板上开孔。
[0011] 作为优选，所述多个支撑板在喷嘴口的周向均布。周向均布的支撑板可使其顶部的挡 板受力均匀。
[0012] 作为优选， 所述阀瓣为钢珠。
[0013] 作为优选，所述通孔的下侧边设有倒角。通孔的下侧边设置倒角可对钢珠走位导向性 更好， 且避免刮伤钢珠表层。
[0014] 本发明减压阀的有益效果是： 钢珠与喷嘴口同心度好， 钢珠与膜片组件均复位良好。 附图说明
[0015] 图 1为实施例 1中减压阀的剖视图；
图 2为图 1中 A处的放大示意图；
图 3为实施例 1中喷嘴处的立体示意图；
图 4为实施例 2中减压阀的剖视图；
图 5为图 4中 B处的放大示意图； 图 6为实施例 2中喷嘴处的立体示意图。
[0016] 图中标号分别为： 1.阀体部 2.阀盖部 3.操作部 4.膜片组件 5.喷嘴本体 6.喷嘴 7.第 一膜片 8.第二膜片 9.第一压縮弹簧 10.钢珠 11.第二压縮弹簧 12.柱体 13.顶盖 14.第一侧 路 15.反馈通路 16.第二侧路 17.调压弹簧 18.主阀芯 19.支撑板 20.挡板 21.喷嘴背压室。 具体实施方式
[0017] 下面通过实施例并结合附图对本发明的技术方案作进一步的具体描述。
[0018] 实施例 1 :
一种减压阀， 如图 1至 3所示， 包括阀体部 1， 阀体部 1上连接有阀盖部 2， 所述阀体部 1 内设有可转动的并穿过阀盖 2的操作部 3， 阀体部 1 内设有第一膜片 7、 膜片组件 4、 喷嘴 本体 5以及设于喷嘴本体 5上的喷嘴 6， 膜片组件 4中设有第二膜片 8， 膜片组件 4与喷嘴 本体 5之间设有第一压縮弹簧 9， 喷嘴口的上方设有钢珠 10， 钢珠 10与喷嘴 6之间设有第 二压縮弹簧 11， 所述喷嘴本体 5上端面设有筒状的柱体 12， 柱体 12的顶部用顶盖 13封闭 并且将第二压縮弹簧 11和钢珠 10封闭在内， 顶盖 13中间开有通孔， 通孔周围分布有气孔， 所述通孔、 喷嘴口以及第二压縮弹簧 11同轴， 钢珠 10的顶部可穿过通孔而从顶盖 13上表 面伸出但不能脱出， 所述通孔的下侧边设有倒角。
[0019] 该精密减压阀的工作原理如下：
顺时针旋转操作部 3， 调压弹簧 17被压縮， 膜片组件 4向下推动钢珠 10， 减小喷嘴 6的开 度， 输入气流经第一侧路 14流入第一膜片 7的上腔， 在喷嘴 6的放大作用下产生背压而成 喷嘴背压室 21， 此背压推动第一膜片 7下移从而打开主阀芯 18， 出气口即有气流输出； 输出气流一方面经反馈通路 15作用在第一膜片 7的下腔， 与上腔压力平衡； 另一方面， 输 出气流通过第二侧路 16进入第二膜片 8的下腔， 与调压弹簧 17相平衡， 以维持出口压力恒 定；
当出口压力增大时， 第二膜片上移， 钢珠 10在第二压縮弹簧 11的作用下上移， 喷嘴 6开度 增大， 第一膜片 7上腔的背压减小， 则第一膜片 7上移， 主阀芯 18开度减小， 出口压力下 降， 维持在调定压力处动态平衡。
[0020] 实施例 2:
一种减压阀， 如图 4至 6所示， 其与实施例 1的不同之处在于： 设于喷嘴本体 5上端面的不 是柱体 12， 而是三个垂直于喷嘴本体 5的支撑板 19， 三个支撑板 19在喷嘴口的周向均布， 三个支撑板 19顶部连接有挡板 20， 挡板 20表面上设有通孔， 该通孔与实施例 1中顶盖 13 上的通孔相同， 所述通孔与喷嘴口同轴。
[0021] 上述所描述的具体实施例仅仅是对本发明的构思作优选举例说明。凡在本发明的精神 和原则之内所做的任何修改或补充或等同替代， 均应包含在本发明权利要求的保护范围之 内。

Claims

权利要求书
1. 一种减压阀， 包括阀体部 （1 )， 阀体部 （1 ) 上连接有阀盖部 （2)， 所述阀体部 （1 ) 内 设有可转动的并穿过阀盖部 （2) 的操作部 （3)， 所述阀体部 （1 ) 内设有膜片组件 （4)、 喷 嘴 （6) 以及在喷嘴背压室 （21 ) 中的背压作用下可控制喷嘴口开闭的阀瓣， 阀瓣位于喷嘴 口的上方， 其特征在于： 所述阀瓣与喷嘴 （6) 之间设有压縮弹簧， 所述压縮弹簧与喷嘴口 同轴， 所述喷嘴 （6) 上还连接有用于限定阀瓣在压縮弹簧作用下向上移动至预定位置的限 位结构， 所述阀瓣的顶部可穿过限位结构而伸出。
2. 根据权利要求 1 所述的减压阀， 其特征在于： 所述喷嘴 （6) 设于喷嘴本体 （5) 上， 所 述膜片组件 （4) 与喷嘴本体 （5) 之间设有压縮弹簧。
3. 根据权利要求 2所述的减压阀， 其特征在于： 所述限位结构包括设于喷嘴本体 （5) 上端 面的顶端封闭的筒状柱体 （12)， 柱体 （12) 的端面上设有可允许阀瓣顶部穿过的通孔以及 分布于通孔周围的气孔， 所述通孔与喷嘴口同轴。
4. 根据权利要求 2所述的减压阀， 其特征在于： 所述限位结构包括设于喷嘴本体 （5) 上端 面的多个支撑板 （19) 以及设于多个支撑板 （19) 顶部的挡板 （20)， 挡板 （20) 表面上设 有可允许阀瓣顶部穿过的通孔， 所述通孔与喷嘴口同轴。
5. 根据权利要求 4所述的减压阀， 其特征在于： 所述多个支撑板 （19) 在喷嘴口的周向均 布。
6. 根据权利要求 1至 5任一项所述的减压阀， 其特征在于： 所述阀瓣为钢珠 （10)。
7. 根据权利要求 1至 5任一项所述的减压阀， 其特征在于： 所述通孔的下侧边设有倒角。
PCT/CN2013/072931 2012-06-25 2013-03-20 减压阀 WO2014000472A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210209955.9 2012-06-25
CN201210209955.9A CN102777649B (zh) 2012-06-25 2012-06-25 减压阀

Publications (1)

Publication Number Publication Date
WO2014000472A1 true WO2014000472A1 (zh) 2014-01-03

Family

ID=47122680

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/072931 WO2014000472A1 (zh) 2012-06-25 2013-03-20 减压阀

Country Status (2)

Country Link
CN (1) CN102777649B (zh)
WO (1) WO2014000472A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10794497B2 (en) * 2018-02-26 2020-10-06 Taiwan Chelic Co., Ltd. Vacuum-based energy-saving large-capacity precision pressure regulation valve

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102777649B (zh) * 2012-06-25 2014-06-04 宁波亚德客自动化工业有限公司 减压阀
CN103324213B (zh) * 2013-05-30 2016-08-10 顾诚 一种压力控制器的基础结构及压力控制器
CN104534134B (zh) * 2014-11-12 2017-07-21 浙江盾安阀门有限公司 高精度膜片式静音减压阀
CN105114673B (zh) * 2015-08-20 2017-11-14 宁波市华益气动工程有限公司 一种精密减压阀
CN105673898A (zh) * 2016-04-01 2016-06-15 成都科盛石油科技有限公司 一种可提高出气压力调节精度的降压主阀
CN114033880B (zh) * 2021-11-04 2024-02-09 重庆凯瑞动力科技有限公司 高压氢气减压阀

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4106474C2 (de) * 1991-03-01 1994-02-10 Massindustrie Gmbh Pneumatischer Druckregler mit Pilotsteuerung
CN1196511A (zh) * 1997-03-26 1998-10-21 Smc株式会社 减压阀
CN1213441A (zh) * 1997-01-07 1999-04-07 Smc株式会社 减压阀
CN102777649A (zh) * 2012-06-25 2012-11-14 宁波亚德客自动化工业有限公司 减压阀
CN202708238U (zh) * 2012-06-25 2013-01-30 宁波亚德客自动化工业有限公司 精密减压阀

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201925552U (zh) * 2011-03-17 2011-08-10 浙江百灵气动科技有限公司 减压阀

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4106474C2 (de) * 1991-03-01 1994-02-10 Massindustrie Gmbh Pneumatischer Druckregler mit Pilotsteuerung
CN1213441A (zh) * 1997-01-07 1999-04-07 Smc株式会社 减压阀
CN1196511A (zh) * 1997-03-26 1998-10-21 Smc株式会社 减压阀
CN102777649A (zh) * 2012-06-25 2012-11-14 宁波亚德客自动化工业有限公司 减压阀
CN202708238U (zh) * 2012-06-25 2013-01-30 宁波亚德客自动化工业有限公司 精密减压阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10794497B2 (en) * 2018-02-26 2020-10-06 Taiwan Chelic Co., Ltd. Vacuum-based energy-saving large-capacity precision pressure regulation valve

Also Published As

Publication number Publication date
CN102777649B (zh) 2014-06-04
CN102777649A (zh) 2012-11-14

Similar Documents

Publication Publication Date Title
WO2014000472A1 (zh) 减压阀
CN204985903U (zh) 精密减压阀
JP5757958B2 (ja) 多ヘッド及びシートを備えた減圧弁
JP2009259136A (ja) 流体圧機器に用いられる絞り構造
CN102313054A (zh) 一种活塞式减压阀
JP2010520529A5 (zh)
JPWO2019209828A5 (zh)
JP2010525290A5 (zh)
CN202867968U (zh) 精密调压阀
CN203516893U (zh) 定压全封闭式减压阀
CN103411357A (zh) 带三次节流及减振功能的空调双向节流阀
CN102356262B (zh) 用于蒸汽轮机的节省空间的快速闭合调节阀
CN202708238U (zh) 精密减压阀
CN108953739A (zh) 自力稳流燃气比例阀及自力稳流方法
CN110307357A (zh) 一种辐流式燃气调圧器
CN207599111U (zh) 一种自力式压差控制阀
CN202790740U (zh) 微负压安全阀
CN206246756U (zh) 一种带膜片组件的大通径安全阀
CN203454487U (zh) 一种带三次节流及减振功能的空调双向节流阀
CN103453192A (zh) 定压全封闭式减压阀
TW202006281A (zh) 節能型大容量直動式精密調壓附過濾閥
CN201198906Y (zh) 双膜片电磁阀
CN104696112B (zh) 基于液化石油气和天然气双燃料发动机的减压阀
MX338635B (es) Caudalimetro.
CN203718078U (zh) 新型超高压调压器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13808972

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13808972

Country of ref document: EP

Kind code of ref document: A1