WO2021000629A1 - 燃气调压器防喘振装置 - Google Patents

燃气调压器防喘振装置 Download PDF

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WO2021000629A1
WO2021000629A1 PCT/CN2020/085110 CN2020085110W WO2021000629A1 WO 2021000629 A1 WO2021000629 A1 WO 2021000629A1 CN 2020085110 W CN2020085110 W CN 2020085110W WO 2021000629 A1 WO2021000629 A1 WO 2021000629A1
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Prior art keywords
damper
housing
port
air
cavity
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PCT/CN2020/085110
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English (en)
French (fr)
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周士钧
阮明
曹晖
方睿
王张富
潘良
王杰
羊成
赵金菊
戴晓娇
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上海飞奥燃气设备有限公司
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Publication of WO2021000629A1 publication Critical patent/WO2021000629A1/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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/20—Excess-flow valves
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • 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
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus

Definitions

  • This application relates to the technical field of gas transmission and distribution systems, for example, to a gas pressure regulator anti-surge device.
  • the gas pressure regulator is a key equipment in the gas transmission and distribution system, which is suitable for occasions where gas pressure needs to be regulated and stabilized.
  • the main function of the gas pressure regulator is to automatically adjust the gas outlet pressure to stabilize it in a specific pressure range to meet the needs of customers.
  • the pressure downstream of the gas pressure regulator is not static, nor does it change smoothly, and fluctuates.
  • the fluctuating pressure sensed by the main diaphragm will cause the valve port to increase or decrease continuously, causing continuous surge.
  • the following measures are currently generally adopted in the industry:
  • a damper is installed at the position of the upper cavity breathing port of the pressure regulator diaphragm to eliminate surge; although the damper is installed at the position of the upper cavity breathing port of the diaphragm, the fluctuating pressure during the operation of the gas pressure regulator has been Directly introduced into the lower cavity of the diaphragm, this solution cannot completely solve the gas pressure regulator surge problem;
  • a needle valve is provided between the pressure pipe and the lower chamber of the diaphragm to eliminate surge by adjusting the opening of the needle valve.
  • this solution will not only not completely eliminate the surge, but also cause the gas pressure regulator to react too slowly.
  • the present application provides an anti-surge device for a gas pressure regulator, which can effectively prevent the gas pressure regulator from surging.
  • An anti-surge device for a gas pressure regulator including:
  • a first damper and a second damper the first damper is arranged horizontally, the air inlet end of the first damper is configured to be connected to an air outlet pipe through a pressure guiding tube, and the air outlet of the first damper The end is configured to be connected to the lower chamber through the outlet pipe;
  • the second damper is arranged vertically, the second damper is configured to be installed at the breathing port position of the upper chamber, and the upper end of the second damper communicates with the outside atmosphere.
  • Figure 1 is a schematic diagram of a half-section structure of the present application.
  • Fig. 2 is an enlarged view of part A in Fig. 1.
  • Fig. 3 is an enlarged view of part B in Fig. 1.
  • valve body 2, gas passage, 2a, air inlet, 2b, air outlet, 3, valve core, 3a, valve port, 4. opening and closing parts, 5, valve stem assembly, 6, pressure regulating Section, 601, pressure regulating body, 601a, upper chamber cover, 601b, upper chamber, 601c, lower chamber, 601d, lower chamber cover, 602, main diaphragm, 603, main spring, 604, spring mounting seat, 7 ,
  • the gas pressure regulator includes a valve body 1, a valve stem assembly 5, an opening and closing member 4, and a pressure regulating part 6.
  • the valve body 1 is provided with a gas passage 2, which has an air inlet 2a and an air outlet 2b, the gas channel 2 is equipped with a sleeve-shaped valve core 3, the valve core 3 is arranged vertically, the lower end of the valve core 3 is provided with a valve port 3a, the upper end of the valve core 3 is an open structure and communicates with the air inlet 2a, and the valve stem
  • the assembly 5 is arranged vertically, the valve stem assembly 5 coaxially penetrates the inner cavity of the valve core 3, and the lower end of the valve stem assembly 5 is equipped with an opening and closing member 4 for opening and closing the valve port 3a;
  • the pressure regulating part 6 includes a hollow structure of pressure regulating
  • the main body 601, the main diaphragm 602, the main spring 603, the spring mounting seat 604, the pressure regulating main body 601 includes an upper cavity cover 601a and a
  • the gas enters the valve body 1 from the air inlet 2a, and after being decompressed through the valve port 3a, it flows out from the air outlet 2b.
  • the air pressure of the lower chamber 601c and the main spring 603 maintain balance.
  • the main diaphragm 602 will move up and down, making the valve port 3a The air gap becomes larger or smaller, thereby adjusting the pressure of the air outlet 2b.
  • the gas pressure regulator anti-surge device is equipped with the following components.
  • the first damper 7, the first damper 7 are arranged horizontally, the inlet end of the first damper 7 is connected with a pressure pipe 10 connected with the outlet pipe 9, and the outlet end of the first damper 7 is connected with The air outlet pipe 11 connected to the lower chamber 601c.
  • the second damper 8 installed at the breathing port position of the upper chamber 601b is arranged vertically, and the upper end of the second damper 8 is in communication with the outside atmosphere.
  • the first damper 7 includes a first damper housing 711, an air guide 707, and a mandrel 705.
  • the first damper housing 711 includes a left housing 701 and a right housing 702.
  • the left housing 701 and the right housing 702 are assembled in a threaded connection; the inner cavity of the first damper housing 711 is fixedly installed with a partition plate 706, and the partition plate 706 is pressed when the left housing 701 and the right housing 702 are screwed together. Installed between the two so as to fix the interlayer plate 706 in the inner cavity of the first damper housing 711.
  • the interlayer plate 706 separates the inner cavity of the first damper housing 711 into a right chamber 703 and a left chamber 704, the right chamber 703 is connected to the pressure tube 10, the left chamber 704 is connected to the air outlet pipe 11, the air guide seat 707 is installed on the partition plate 706, and the mandrel 705 is fixedly connected to the air guide seat 707,
  • the air guide seat 707 has an airflow channel 707a, the right port of the airflow channel 707a is located in the right chamber 703, the left port of the airflow channel 707a is located in the left chamber 704, and a pair of oppositely arranged mandrels 705 are provided
  • the movable opening and closing components, two movable opening and closing components are configured to respectively control the right port flow and the left port flow of the air flow channel 707a.
  • Each movable opening and closing assembly includes an opening and closing baffle 708, a return spring 709, and a limit plate 710.
  • the limit plate 710 is fixedly sleeved on the end of the mandrel 705 away from the air guide seat 707.
  • the opening and closing baffle 708 is connected to the limiting plate 710 via a return spring 709, and the opening and closing baffle 708 is configured to control the flow at the right port or the left port of the air flow channel 707a.
  • the second damper 8 includes a second damper housing 801, a vent 812 and a central shaft 810.
  • the inner cavity of the second damper housing 801 is fixedly installed with a horizontally arranged press-fitting plate 811,
  • the matching plate 811 separates the inner cavity of the second damper housing 801 into an upper air cavity 802 and a lower air cavity 805.
  • the lower air cavity 805 is in communication with the upper cavity 601b, and the upper end of the upper air cavity 802 is provided with an upper breathing communicating with the outside atmosphere.
  • the vent seat 812 is mounted on the press-fitting plate 811, the central axis 810 is fixedly connected to the vent seat 812, the vent seat 812 is provided with a ventilation channel 812a, the lower port of the ventilation channel 812a is in the lower air cavity 805, and the ventilation channel 812a
  • the upper port is in the upper air cavity 802
  • a pair of oppositely arranged elastic opening and closing components are provided on the central shaft 810, and the two elastic opening and closing components are configured to respectively control the upper port flow rate and the lower port flow rate of the ventilation channel 812a.
  • Each elastic opening and closing assembly includes a movable baffle 809, a telescopic spring 808, and a fixed plate 807.
  • the fixed plate 807 is fixedly sleeved on the end of the central shaft 810 away from the ventilation seat 812, and the movable baffle 809 is movably sleeved on the central shaft 810 near the ventilation seat.
  • the movable baffle 809 is connected to the fixed plate 807 through a retractable spring 808, and the movable baffle 809 is configured to control the upper port flow rate or the lower port flow rate of the ventilation channel 812a.
  • the two opening and closing baffles 708 respectively seal the inlet and the outlet of the air flow channel 707a under the elastic force of the return spring 709.
  • the two movable baffles 809 respectively seal the inlet and the outlet of the ventilation channel 812a under the elastic force of the telescopic spring 808.
  • the gas pressure regulator passes through the damping effect of the first damper 7, and the airflow first enters the right chamber 703 of the first damper 7 from the pressure pipe 10, and the gas pressure pushes the right opening and closing baffle 708 to the right.
  • the left opening and closing baffle 708 is opened to the left, so that the left port of the air channel 707a is opened, so that the air enters the left chamber 704, and then the air flows through
  • the air outlet pipe 11 enters the lower chamber 601c, and the air pressure in the lower chamber 601c suddenly increases and the main diaphragm 602 is lifted up under the action of the air pressure.
  • the gas pressure regulator undergoes the damping action of the second damper 8.
  • the air pressure in the upper chamber 601b increases, and the gas enters the second damper 8, pushing the lower movable baffle 809 to compress the lower
  • the retractable spring 808 makes the lower port of the gas permeable passage 812a open, and the gas enters the upper port of the gas permeable passage 812a from the lower port of the gas permeable passage 812a, thereby pushing the upper movable baffle 809, so that the upper telescopic spring 808 is compressed, and the permeable passage
  • the upper port of the 812a is opened, and the gas after the second damping action enters the outside atmosphere through the upper breathing port 802a; when the main diaphragm 602 moves downward, the pressure of the upper chamber 601b decreases, pushing the movable baffle 809 above, The upper telescopic spring 808 is compressed, the upper port of the gas permeable passage 812a is
  • the upper breathing port 802a of the upper air cavity 802 is provided with a dust-proof component, which includes an integrated dust cover 803 and a threaded post 804.
  • the threaded post 804 is threadedly connected to the upper breathing port 802a to prevent
  • the dust cover 803 is directly above the upper breathing port 802a and covers the upper breathing port 802a
  • the threaded column 804 is provided with a plurality of breathing passages 804a
  • the upper air cavity 802 communicates with the outside atmosphere through the plurality of breathing passages 804a.
  • the dustproof part has a dustproof cover 803, which can block rain and dust.
  • the threaded post 804 of the dustproof part is provided with a breathing channel 804a, which can play a role of breathing. Therefore, the dustproof part can Dustproof, can also play a role in breathing.
  • the second damper housing 801 includes an upper housing 801a and a lower housing 801b.
  • the upper housing 801a and the lower housing 801b are assembled in a threaded connection, and the upper breathing port 802a is provided on the upper housing 801a.
  • the press-fitting plate 811 can be press-fitted between the two, thereby fixing the press-fitting plate 811 in the inner cavity of the second damper housing 801.
  • the second damper 8 further includes a lock nut 806 in the upper chamber 601b and configured to lock the lower housing 801b, the lower housing 801b is configured to pass through the upper chamber cover 601a and extend into the upper chamber 601b, and the lock nut 806 is sleeved on the lower end of the lower housing 801b and is threadedly fitted with the lower housing 801b.
  • the entire second damper 8 is locked on the upper cavity cover 601a.
  • the gas pressure regulator anti-surge device provided by the present application is provided with a first damper and a second damper.
  • the upper chamber and the lower chamber are controlled by controlling the air flow of the first damper and the second damper
  • the gas flow rate can disrupt the resonance between the upper chamber, the lower chamber and the valve port, thereby improving the voltage stabilization accuracy of the gas pressure regulator, and can effectively prevent the gas pressure regulator from surging; the second damper
  • the upper breathing port is equipped with a dust-proof part, which has a dust-proof cover, which can block rain and dust.
  • the threaded column of the dust-proof part is equipped with a breathing channel, which can play a role in breathing.
  • the dustproof parts can prevent dust and can also play a role in breathing.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

一种燃气调压器防喘振装置，包括：第一阻尼器（7）和第二阻尼器（8），第一阻尼器（7）横向布置，第一阻尼器（7）的进气端配置为通过引压管（10）与出气管道（9）接通，以及第一阻尼器（7）的出气端配置为通过出气管路（11）与下腔室（601c）接通；第二阻尼器（8）竖直布置，第二阻尼器（8）配置为安装在上腔室（601b）的呼吸口位置，以及第二阻尼器（8）的上端与外界大气连通。

Description

燃气调压器防喘振装置
本申请要求在2019年7月3日提交中国专利局、申请号为201910594819.8的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及燃气输配系统技术领域，例如涉及一种燃气调压器防喘振装置。
背景技术
燃气调压器是燃气输配系统中的关键设备，适用于燃气需要调压、稳压的场合。燃气调压器的主要作用是自动调节燃气出口压力，使其稳定在某一特定的压力范围，来满足客户的使用需求。
在输配系统运行过程中，燃气调压器下游的压力不是一成不变的，也不是平稳变化的，会有波动。主膜片感受到的波动压力会促使阀口不断的增大或减小，从而引起不停的喘振现象。针对喘振问题，行业内目前普遍采用以下措施：
1)在调压器膜片上腔呼吸口的位置设置阻尼器以消除喘振现象；尽管在膜片上腔呼吸口的位置设置阻尼器，但是在燃气调压器运行过程中的波动压力已经直接引入到膜片下腔，此种方案是不能完全解决燃气调压器喘振问题；
2)在引压管与膜片下腔室之间设置针阀以通过调节针阀的开度来消除喘振。但是此种方案会不仅不能彻底消除喘振，而且还引起燃气调压器反应过慢。
发明内容
本申请提供一种燃气调压器防喘振装置，能够有效防止燃气调压器喘振现象。
一种燃气调压器防喘振装置，包括：
第一阻尼器和第二阻尼器，所述第一阻尼器横向布置，所述第一阻尼器的进气端配置为通过引压管与出气管道接通，以及所述第一阻尼器的出气端配置为通过出气管路与下腔室接通；
所述第二阻尼器竖直布置，所述第二阻尼器配置为安装在上腔室的呼吸口位置，以及所述第二阻尼器的上端与外界大气连通。
附图说明
图1是本申请的半剖结构示意图。
图2是图1中的A部放大图。
图3是图1中的B部放大图。
图中，1、阀体，2、气体通道，2a、进气口，2b、出气口，3、阀芯，3a、阀口，4、启闭件，5、阀杆组件，6、调压部，601、调压主体，601a、上腔盖，601b、上腔室，601c、下腔室，601d、下腔盖，602、主膜片，603、主弹簧，604、弹簧安装座，7、第一阻尼器，701、左壳体，702、右壳体，703、右腔室，704、左腔室，705、芯轴，706、隔层板，707、导气座，707a、气流通道，708、启闭挡板，709、复位弹簧，710、限位板，711、第一阻尼器壳体，8、第二阻尼器，801、第二阻尼器壳体，801a、上壳体，801b、下壳体，802、上气腔，802a、上呼吸口，803、防尘罩，804、螺纹柱，804a、呼吸通道，805、下气腔，806、锁定螺母，807、固定板，808、伸缩弹簧，809、活动挡板，810、中心轴，811、压配板，812、通气座，812a、透气通道，9、出气管道，10、引压管，11、出气管路。
具体实施方式
下面结合附图和具体实施例对本申请进一步说明。
如图1所示，燃气调压器包括阀体1、阀杆组件5、启闭件4、调压部6；阀体1设有气体通道2，气体通道2具有进气口2a和出气口2b，气体通道2内置有圆套状结构的阀芯3，阀芯3竖直布置，阀芯3下端设有阀口3a，阀芯3上端为开口结构并与进气口2a连通，阀杆组件5竖直设置，阀杆组件5同轴穿过阀芯3的内腔，阀杆组件5下端安装用于启闭阀口3a的启闭件4；调压部6包括空心结构的调压主体601、主膜片602、主弹簧603、弹簧安装座604，调压主体601包括上腔盖601a和下腔盖601d，上腔盖601a通过螺栓与下腔盖601d拼装在一起，并将主膜片602压装在上腔盖601a与下腔盖601d拼装的中间位置，使得主膜片602将调压主体601的空心腔分隔成上腔室601b和下腔室601c；弹簧安装座604与上腔盖601a相固定；阀杆组件5可沿阀杆组件5的轴向活动地穿装在调压主体601，且同时穿接主膜片602，阀杆组件5上端与主弹簧603下端相连，主弹簧603上端与弹簧安装座604相连；在通气时，燃气压力会将启闭件4向下顶，使得阀口3a处于打开状态以使得燃气能够从出气口2b进入 到出气管道9中，而且随着燃气压力的波动，阀杆组件5会沿阀杆组件5的轴向伸缩。在运行时，燃气由进气口2a进入阀体1，经阀口3a减压后，由出气口2b流出。在稳定工作情况下，下腔室601c的气压与主弹簧603保持平衡。当进气口2a、出气口2b的气体压力出现变化时，下腔室601c的气体压力与主弹簧603原有的平衡被打破，为了维持平衡，主膜片602会上下移动，使得阀口3a的透气间隙变大或变小，从而调节出气口2b的压力。
如图1所示，为了消除使用过程中产生的喘振现象，燃气调压器防喘振装置设有如下的部件。第一阻尼器7，第一阻尼器7横向布置，第一阻尼器7的进气端接通有与出气管道9接通的引压管10，第一阻尼器7的出气端接通有与下腔室601c接通的出气管路11。安装在上腔室601b呼吸口位置的的第二阻尼器8，第二阻尼器8竖直布置，第二阻尼器8上端与外界大气连通。
如图2所示，第一阻尼器7包括第一阻尼器壳体711、导气座707和芯轴705，第一阻尼器壳体711包括左壳体701和右壳体702，左壳体701和右壳体702以螺纹连接的方式拼装起来；第一阻尼器壳体711内腔固定安装有隔层板706，在左壳体701和右壳体702螺纹连接时将隔层板706压装在两者之间，从而将隔层板706固定在第一阻尼器壳体711内腔中，隔层板706将第一阻尼器壳体711内腔分隔为右腔室703和左腔室704，右腔室703与引压管10接通，左腔室704与出气管路11接通，导气座707穿装在隔层板706上，芯轴705与导气座707固定连接，导气座707上具有气流通道707a，气流通道707a的右端口处于右腔室703中的位置，气流通道707a的左端口处于左腔室704中的位置，芯轴705上设置有一对相对布置的活动启闭组件，两个活动启闭组件配置为分别控制气流通道707a的右端口流量和左端口流量。
每个活动启闭组件包括启闭挡板708、复位弹簧709、限位板710，限位板710固定套装在芯轴705的远离导气座707的一端，启闭挡板708活动套装在芯轴705的靠近导气座707的位置，启闭挡板708通过复位弹簧709连接限位板710，启闭挡板708配置为控制气流通道707a的右端口流量或左端口流量。
如图3所示，上述第二阻尼器8包括第二阻尼器壳体801、通气座812和中心轴810，第二阻尼器壳体801内腔固定安装有水平布置的压配板811，压配板811将第二阻尼器壳体801内腔分隔为上气腔802和下气腔805，下气腔805与 上腔室601b连通，上气腔802上端设有与外界大气连通的上呼吸口802a，通气座812穿装在压配板811上，中心轴810与通气座812固定连接，通气座812上具有透气通道812a，透气通道812a的下端口处于下气腔805中，透气通道812a的上端口处于上气腔802中，中心轴810上设置有一对相对布置的弹性启闭组件，两个弹性启闭组件配置为分别控制透气通道812a的上端口流量和下端口流量。
每个弹性启闭组件包括活动挡板809、伸缩弹簧808和固定板807，固定板807固定套装在中心轴810的远离通气座812的一端，活动挡板809活动套装在中心轴810的靠近通气座812的位置，活动挡板809通过伸缩弹簧808连接固定板807，活动挡板809配置为控制透气通道812a的上端口流量或下端口流量。
燃气调压器未通气时，在第一阻尼器7中，两个启闭挡板708在复位弹簧709的弹力作用下分别封住气流通道707a的进口和出口，在第二阻尼器8中，两个活动挡板809在伸缩弹簧808的弹力作用下分别封住透气通道812a的进口和出口。
当燃气调压器通气后，进气口2a或出气口2b压力波动过大或过于频繁引起的燃气调压器喘振时，气流进入引压管10。
首先，燃气调压器经过第一阻尼器7的阻尼作用，气流先从引压管10进入第一阻尼器7的右腔室703中，气体压力将右边的启闭挡板708向右顶，使得气流通道707a的右端口处于打开状态，气流进入气流通道707a后将左边的启闭挡板708向左顶开，使得气流通道707a的左端口打开，使得气流进入左腔室704，然后气流经过出气管路11进入到下腔室601c内，下腔室601c内气压突增并在气压的作用下将主膜片602向上顶起。
然后，燃气调压器经过第二阻尼器8的阻尼作用，在主膜片602向上变形后，上腔室601b的气压增加，气体进入第二阻尼器8，推动下面的活动挡板809压缩下面的伸缩弹簧808，使得透气通道812a的下端口打开，气体从透气通道812a的下端口进入透气通道812a的上端口，从而推动上面的活动挡板809，使得上面的伸缩弹簧808被压缩，透气通道812a的上端口打开，经过第二次阻尼作用后的气体通过上呼吸口802a进入外界大气；在主膜片602向下移动时，上腔室601b气压减小，推动上面的活动挡板809，上面的伸缩弹簧808被压缩， 透气通道812a的上端口打开，气体通过透气通道812a的上端口进入透气通道812a的下端口，从而推动下面的活动挡板809，使得下面的伸缩弹簧808被压缩，透气通道812a的下端口开启，从而将外界气体进入上腔室601b。
如图3所示，上述上气腔802的上呼吸口802a设有防尘件，防尘件包括一体成型的防尘罩803、螺纹柱804，螺纹柱804与上呼吸口802a螺纹连接，防尘罩803处于上呼吸口802a正上方并遮住上呼吸口802a，螺纹柱804上设有多个呼吸通道804a，上气腔802通过多个呼吸通道804a与外界大气连通。
防尘件具有防尘罩803，防尘罩803能够起到遮挡雨水、灰尘的作用，防尘件的螺纹柱804上设有呼吸通道804a，能够起到呼吸的作用，因此防尘件既可以防尘，也可以起到呼吸的作用。
上述第二阻尼器壳体801包括上壳体801a和下壳体801b，上壳体801a和下壳体801b以螺纹连接的方式拼装起来，上呼吸口802a设置在上壳体801a上。在上壳体801a和下壳体801b螺纹连接在一起时可将压配板811压装在两者之间，从而将压配板811固定在第二阻尼器壳体801内腔中。
上述第二阻尼器8还包括处于上腔室601b中且配置为锁定下壳体801b的锁定螺母806，下壳体801b配置为穿过上腔盖601a并伸入上腔室601b中，锁定螺母806套装在下壳体801b的下端并与下壳体801b螺纹配合。从而将整个第二阻尼器8锁定在上腔盖601a上。
本申请提供的燃气调压器防喘振装置设置有第一阻尼器和第二阻尼器，通过控制第一阻尼器、第二阻尼器的透气流量的大小，来调控上腔室、下腔室的气体流速，以打乱上腔室、下腔室与阀口之间的共振，从而提高了燃气调压器的稳压精度，能够有效防止燃气调压器喘振现象；第二阻尼器的上呼吸口安装有防尘件，防尘件具有防尘罩，防尘罩能够起到遮挡雨水、灰尘的作用，防尘件的螺纹柱上设有呼吸通道，能够起到呼吸的作用，因此防尘件既可以防尘，也可以起到呼吸的作用。

Claims (9)

  1. 一种燃气调压器防喘振装置，包括：第一阻尼器(7)和第二阻尼器(8)，
    所述第一阻尼器(7)横向布置，所述第一阻尼器(7)的进气端配置为通过引压管(10)与出气管道(9)接通，以及所述第一阻尼器(7)的出气端配置为通过出气管路(11)与下腔室(601c)接通；
    所述第二阻尼器(8)竖直布置，所述第二阻尼器(8)配置为安装在上腔室(601b)的呼吸口位置，以及所述第二阻尼器(8)的上端与外界大气连通。
  2. 根据权利要求1所述的燃气调压器防喘振装置，其中，所述第一阻尼器(7)包括第一阻尼器壳体(711)、导气座(707)和芯轴(705)，所述第一阻尼器壳体(711)内腔固定安装有隔层板(706)，所述隔层板(706)将所述第一阻尼器壳体(711)内腔分隔为右腔室(703)和左腔室(704)，所述右腔室(703)与所述引压管(10)接通，所述左腔室(704)与所述出气管路(11)接通，所述导气座(707)穿装在所述隔层板(706)上，所述芯轴(705)与所述导气座(707)固定连接，所述导气座(707)上具有气流通道(707a)，所述气流通道(707a)的右端口处于所述右腔室(703)中的位置，所述气流通道(707a)的左端口处于所述左腔室(704)中的位置，所述芯轴(705)上设置有一对相对布置的活动启闭组件，两个活动启闭组件配置为分别控制所述气流通道(707a)的右端口流量和左端口流量。
  3. 根据权利要求2所述的燃气调压器防喘振装置，其中，每个所述活动启闭组件包括启闭挡板(708)、复位弹簧(709)和限位板(710)，所述限位板(710)固定套装在所述芯轴(705)的远离所述导气座(707)的一端，所述启闭挡板(708)活动套装在所述芯轴(705)的靠近所述导气座(707)的位置，所述启闭挡板(708)通过所述复位弹簧(709)连接所述限位板(710)，所述启闭挡板(708)配置为控制所述气流通道(707a)的右端口流量或左端口流量。
  4. 根据权利要求1、2或3所述的燃气调压器防喘振装置，其中，所述第二阻尼器(8)包括第二阻尼器壳体(801)、通气座(812)和中心轴(810)，所述第二阻尼器壳体(801)内腔固定安装有水平布置的压配板(811)，所述压配板(811)将所述第二阻尼器壳体(801)内腔分隔为上气腔(802)和下气腔(805)，所述下气腔(805)与所述上腔室(601b)连通，所述上气腔(802) 上端设有与外界大气连通的上呼吸口(802a)，所述通气座(812)穿装在所述压配板(811)上，所述中心轴(810)与所述通气座(812)固定连接，所述通气座(812)上具有透气通道(812a)，所述透气通道(812a)的下端口处于所述下气腔(805)中，所述透气通道(812a)的上端口处于所述上气腔(802)中，所述中心轴(810)上设置有一对相对布置的弹性启闭组件，两个弹性启闭组件配置为分别控制所述透气通道(812a)的上端口流量和下端口流量。
  5. 根据权利要求4所述的燃气调压器防喘振装置，其中，每个所述弹性启闭组件包括活动挡板(809)、伸缩弹簧(808)和固定板(807)，所述固定板(807)固定套装在所述中心轴(810)的远离所述通气座(812)的一端，所述活动挡板(809)活动套装在中心轴(810)的靠近所述通气座(812)的位置，所述活动挡板(809)通过所述伸缩弹簧(808)连接所述固定板(807)，所述活动挡板(809)配置为控制所述透气通道(812a)的上端口流量或下端口流量。
  6. 根据权利要求4或5所述的燃气调压器防喘振装置，其中，所述上气腔(802)的所述上呼吸口(802a)设有防尘件，所述防尘件包括一体成型的防尘罩(803)和螺纹柱(804)，所述螺纹柱(804)与所述上呼吸口(802a)螺纹连接，所述防尘罩(803)处于所述上呼吸口(802a)正上方并遮住所述上呼吸口(802a)，所述螺纹柱(804)上设有多个呼吸通道(804a)，所述上气腔(802)通过所述多个呼吸通道(804a)与外界大气连通。
  7. 根据权利要求6所述的燃气调压器防喘振装置，其中，所述第二阻尼器壳体(801)包括上壳体(801a)和下壳体(801b)，所述上壳体(801a)和所述下壳体(801b)以螺纹连接的方式拼装，所述上呼吸口(802a)设置在所述上壳体(801a)上。
  8. 根据权利要求7所述的燃气调压器防喘振装置，其中，所述第二阻尼器(8)还包括处于所述上腔室(601b)中且配置为锁定所述下壳体(801b)的锁定螺母(806)，所述下壳体(801b)配置为穿过上腔盖(601a)并伸入所述上腔室(601b)中，所述锁定螺母(806)套装在下壳体(801b)的下端并与所述下壳体(801b)螺纹配合。
  9. 根据权利要求2或3所述的燃气调压器防喘振装置，其中，所述第一阻尼器壳体(711)包括左壳体(701)和右壳体(702)，所述左壳体(701)和 所述右壳体(702)以螺纹连接的方式拼装。
PCT/CN2020/085110 2019-07-03 2020-04-16 燃气调压器防喘振装置 WO2021000629A1 (zh)

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