WO2019144791A1 - 一种活塞瓶 - Google Patents

一种活塞瓶 Download PDF

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Publication number
WO2019144791A1
WO2019144791A1 PCT/CN2019/070378 CN2019070378W WO2019144791A1 WO 2019144791 A1 WO2019144791 A1 WO 2019144791A1 CN 2019070378 W CN2019070378 W CN 2019070378W WO 2019144791 A1 WO2019144791 A1 WO 2019144791A1
Authority
WO
WIPO (PCT)
Prior art keywords
flange
piston
bellows
valve
steel cylinder
Prior art date
Application number
PCT/CN2019/070378
Other languages
English (en)
French (fr)
Inventor
袁华明
Original Assignee
成都思创睿智科技有限公司
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 成都思创睿智科技有限公司 filed Critical 成都思创睿智科技有限公司
Priority to DE202019100444.4U priority Critical patent/DE202019100444U1/de
Publication of WO2019144791A1 publication Critical patent/WO2019144791A1/zh

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14—Suction devices, e.g. pumps; Ejector devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
    • G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
    • G01N1/2042—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping using a piston actuated by the pressure of the liquid to be sampled
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14—Suction devices, e.g. pumps; Ejector devices
    • G01N2001/1418—Depression, aspiration
    • G01N2001/1427—Positive displacement, piston, peristaltic
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
    • G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
    • G01N2001/2071—Removable sample bottle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices
    • G01N2001/241—Bellows
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices
    • G01N2001/248—Evacuated containers

Definitions

  • the utility model relates to the field of liquefied petroleum sampling devices, in particular to a piston bottle.
  • the piston bottle is a kind of sampling bottle used for sampling and analysis of liquefied petroleum gas. It is mainly used in the fields of liquefied petroleum gas sampling, environmental gas sampling, and laboratory analysis of medical and health.
  • a stainless steel cylinder a piston in the middle divides it into two spaces, one for loading samples and one for helium.
  • the sample is passed through the sample side valve into the cylinder to close the valve, and the other side is filled with high pressure inert gas and the valve is closed.
  • the valve on the sample side is opened, the sample is vaporized by the high pressure inert gas, and the vaporized gas is available for the user.
  • the sealing problem between the piston and the stainless steel cylinder is currently used by the o-ring seal.
  • the technical problem to be solved by the utility model is to provide a piston bottle, which solves the defects of leakage, inconvenient sampling and the like of the conventional sampling piston bottle.
  • a piston bottle a steel cylinder is fastened between a first flange and a second flange; a bellows is disposed in the steel cylinder, and one end of the bellows passes through the first bellows flange Fixed to the first flange, the first flange is provided with an opening communicating with the bellows, and the opening is connected to the first valve; the bellows is internally provided with a piston barrel, the open end of the cylinder and the bellows The other end is fixed by a second bellows flange, the second flange is provided with an opening communicating with the piston barrel, and the opening is connected to the second valve.
  • a glass tube is disposed along the longitudinal direction of the steel cylinder, and a magnet is placed in the glass tube; a magnetic ring is fixed on the flange of the second bellows, and the magnet moves synchronously as the magnetic ring moves.
  • first flange and the second flange are fixed by a screw therebetween and a nut at both ends of the screw.
  • a gasket is disposed between the steel cylinder and the first flange, and between the steel cylinder and the second flange.
  • the glass tube is a plexiglass tube.
  • the two ends of the glass tube are respectively fixed on the first flange and the second flange.
  • the utility model has the beneficial effects that the piston bottle is used in the petrochemical industry and the environment, which can greatly improve work efficiency and ensure the accuracy of sampling analysis.
  • FIG. 1 is a schematic view showing the structure of a piston bottle of the present invention.
  • the piston bottle of the utility model mainly comprises two valves, a plurality of flanges, a steel cylinder 7 (or a stainless steel cylinder), a bellows 8, a piston cylinder 9, a gasket 5, a screw 3 and a nut 4 and the like.
  • the piston barrel 9 is welded to the inside of the bellows 8 through the second bellows flange 10, and the bellows 8 is welded to the first flange 2 through the first bellows flange 6, and the first flange 2 is mounted thereon.
  • the first valve 1 and the gasket 5; the second flange 11 is mounted with a second valve 12 and a gasket 5.
  • the first flange 2 and the second flange 11 are pressed by the screw 3 and the nut 4.
  • the second bellows flange 10 is sleeved with a magnetic ring 14.
  • the magnetic ring 14 will drive the magnet 16 in the glass tube 15 outside the bottle to move through the movement of the magnet 16.
  • the position of movement of the cylinder barrel 9 can be known, so that the use condition of the sample can be known.
  • the sample enters the bellows 8 from the first valve 1, and the sample between the corrugated tube 8 and the cylinder 9 is filled with the sample, and the sample side valve is closed after the sample is filled.
  • the second valve 12 is filled with 6 MPa of inert gas, and the liquid sample measured by the sample is vaporized, and the vaporized sample is discharged through the first valve 1 for use by the user.
  • the piston bottle introduces a bellows 8 to completely separate the sample from the inert gas, and does not leak, and can withstand a high pressure of 6 MPa.
  • the conventional sampling bottle needs to continuously pass a high-pressure gas on the gas side to take the sample. The measured liquid vaporization.
  • the first valve 1 For the sampling of ambient air, the first valve 1 is connected with the vacuum pump, and the inside of the bellows 8 is evacuated. After the vacuum is exhausted, the first valve 1 is closed. When sampling is required, the first valve 1 is opened, and the piston is opened. The barrel 9 will drive the bellows 8 to be stretched backward, and the ambient gas is drawn into the cavity of the bellows 8 until the second bellows flange 10 is moved to the end, and the sampling of the first valve 1 is closed.

Abstract

一种活塞瓶，在第一法兰盘（2）和第二法兰盘（11）之间紧固设置有钢筒（7）；在钢筒（7）内设置有波纹管（8），波纹管（8）一端通过第一波纹管法兰盘（6）固定于第一法兰盘（2），第一法兰盘（2）设有与波纹管（8）相通的开口，且此开口连接到第一阀门（1）；波纹管（8）内部设置有活塞筒（9），活塞筒（9）开口端与波纹管（8）另一端通过第二波纹管法兰盘（10）固定，第二法兰盘（11）上设置有与活塞筒（9）相通的开口，且此开口连接到第二阀门（12）。活塞瓶运用于石油化工和环境领域，可大大提高工作效率，保证采样分析的准确性。

Description

一种活塞瓶 技术领域
本实用新型涉及液化石油取样装置领域，特别是一种活塞瓶。
 背景技术
活塞瓶是一种用于液化石油气采样、分析的一种取样瓶，主要使用在液化石油气 采样、环境气体采样、医疗卫生的实验室分析等领域。
目前国内外所采用的结构：一个不锈钢筒，中间一个活塞将其分隔成两个空间，一 边用来装样品，一边用来装氦气。两边都各有一个针阀来进行关断。样品通过样品侧阀门进 入筒内关断阀门，另一侧充入高压的惰性气体后关断阀门。此时如果打开样品侧的阀门，样 品由于被高压的惰性气体压缩汽化，汽化后的气体即可供用户使用。但是此种方法存在一 定的问题，活塞和不锈钢筒之间的密封问题，目前大家采用的是o型圈密封，一小时内使用 的时候，几乎没有什么问题，但是随着时间的增加，样品和惰性气体之间会出现渗漏的情 况，而且时间越久渗漏的越多。这就导致整个采样的样品没有反映出样品的实际情况。而且 在活塞滑动过程中，会导致o型圈磨损，产生泄漏。
 技术问题
本实用新型所要解决的技术问题是提供一种活塞瓶，解决传统采样活塞瓶的渗 漏、不方便采样等缺陷。
 技术解决方案
为解决上述技术问题，本实用新型采用的技术方案是：
一种活塞瓶，在第一法兰盘和第二法兰盘之间紧固设置有钢筒；在所述钢筒内设 置有波纹管，所述波纹管一端通过第一波纹管法兰盘固定于第一法兰盘，第一法兰盘设有 与波纹管相通的开口，且此开口连接到第一阀门；所述波纹管内部设置有活塞筒，所述活塞 筒开口端与波纹管另一端通过第二波纹管法兰盘固定，所述第二法兰盘上设置有与活塞筒 相通的开口，且此开口连接到第二阀门。
进一步的，沿着钢筒长度方向设置有一条玻璃管，在所述玻璃管内放置磁铁；在第 二波纹管法兰盘上固定有磁环，随着磁环的移动，磁铁同步移动。
进一步的，所述第一法兰盘与第二法兰盘通过其间的螺杆、以及螺杆两端的螺帽 固定。
进一步的，在钢筒与第一法兰盘之间、钢筒与第二法兰盘之间都设置有密封垫。
进一步的，所述玻璃管为有机玻璃管。
进一步的，所述玻璃管两端分别固定在第一法兰盘和第二法兰盘上。
 有益效果
与现有技术相比，本实用新型的有益效果是：本活塞瓶运用于石油化工和环境领 域，可大大提高工作效率，保证采样分析的准确性。
 附图说明
图1是本实用新型活塞瓶结构示意图。
图中：1-第一阀门；2-第一法兰盘；3-螺杆；4-螺帽；5-密封垫；6-第一波纹管法兰 盘；7-钢筒；8-波纹管；9-活塞筒；10-第二波纹管法兰盘；11-第二法兰盘；12-第二阀门；14- 磁环；15-玻璃管；16-磁铁。
本实用新型的实施方式
下面结合附图和具体实施方式对本实用新型作进一步详细的说明。
本实用新型活塞瓶主要由两个阀门、若干法兰盘、钢筒7(或不锈钢筒)、波纹管8、 活塞筒9、密封垫5、螺杆3和螺帽4等部件组成。活塞筒9通过第二波纹管法兰盘10焊接在波 纹管8里边，波纹管8通过第一波纹管法兰盘6焊接在第一法兰盘2上面，第一法兰盘2上面安 装有第一阀门1和密封垫5；第二法兰盘11上安装有第二阀门12和密封垫5。第一法兰盘2和 第二法兰盘11通过螺杆3和螺帽4连接压紧。第二波纹管法兰盘10上面套有一个磁环14，当 活塞筒9在高压气体作用下移动过程中，磁环14将带动瓶外面玻璃管15内的磁铁16运动，通 过磁铁16的运动可以知道活塞筒9的运动位置，从而可以知道样品的使用状况。
本实用新型活塞筒用于液化石油气分析时，样品从第一阀门1进入波纹管8，将波 纹管8和活塞筒9之间充满了样品，充装好样品后关断样品侧阀门。然后通过第二阀门12充 入6MPa的惰性气体，将样品测的液体样品进行汽化，汽化后的样品通过第一阀门1排出，供 用户使用。本活塞瓶引入了波纹管8，将样品和惰性气体完全隔开，不会出现渗漏，而且能承 受6MPa的高压，而传统的采样瓶需要持续性的在气体侧通入高压气体才能将样品测的液体 汽化。
用于环境空气采样时，将第一阀门1与真空泵相连接，对波纹管8内进行抽真空处 理，抽完真空后关闭第一阀门1，当需要采样的时候，打开第一阀门1，活塞筒9将带动波纹管 8向后拉伸，将环境气体抽入波纹管8腔体内，直到第二波纹管法兰盘10运动到尽头时，关闭 第一阀门1采样结束。

Claims (6)

  1. 一种活塞瓶，其特征在于，在第一法兰盘(2)和第二法兰盘(11)之间紧固设置有钢筒 (7)；在所述钢筒(7)内设置有波纹管(8)，所述波纹管(8)一端通过第一波纹管法兰盘(6)固 定于第一法兰盘(2)，第一法兰盘(2)设有与波纹管(8)相通的开口，且此开口连接到第一阀 门(1)；所述波纹管(8)内部设置有活塞筒(9)，所述活塞筒(9)开口端与波纹管(8)另一端通 过第二波纹管法兰盘(10)固定，所述第二法兰盘(11)上设置有与活塞筒(9)相通的开口，且 此开口连接到第二阀门(12)。
  2. 如权利要求1所述的一种活塞瓶，其特征在于，沿着钢筒(7)长度方向设置有一条玻 璃管(15)，在所述玻璃管(15)内放置磁铁(16)；在第二波纹管法兰盘(10)上固定有磁环 (14)，随着磁环(14)的移动，磁铁(16)同步移动。
  3. 如权利要求1所述的一种活塞瓶，其特征在于，所述第一法兰盘(2)与第二法兰盘 (11)通过其间的螺杆(3)、以及螺杆(3)两端的螺帽(4)固定。
  4. 如权利要求1所述的一种活塞瓶，其特征在于，在钢筒(7)与第一法兰盘(2)之间、钢 筒(7)与第二法兰盘(11)之间都设置有密封垫(5)。
  5. 如权利要求2所述的一种活塞瓶，其特征在于，所述玻璃管(15)为有机玻璃管。
  6. 如权利要求2所述的一种活塞瓶，其特征在于，所述玻璃管(15)两端分别固定在第一 法兰盘(2)和第二法兰盘(11)上。
PCT/CN2019/070378 2018-01-29 2019-01-04 一种活塞瓶 WO2019144791A1 (zh)

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DE202019100444.4U DE202019100444U1 (de) 2018-01-29 2019-01-25 Kolbenflasche

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CN202510725U (zh) * 2012-03-29 2012-10-31 温州金鑫生化阀门有限公司 波纹管取样阀
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Publication number Priority date Publication date Assignee Title
WO2023104637A1 (en) * 2021-12-06 2023-06-15 Opta-Periph Sas Variable volume and variable pressure sampling container

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