WO2021139823A1 - Gaseous sample random sampling apparatus - Google Patents

Gaseous sample random sampling apparatus Download PDF

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Publication number
WO2021139823A1
WO2021139823A1 PCT/CN2021/075336 CN2021075336W WO2021139823A1 WO 2021139823 A1 WO2021139823 A1 WO 2021139823A1 CN 2021075336 W CN2021075336 W CN 2021075336W WO 2021139823 A1 WO2021139823 A1 WO 2021139823A1
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outlet
sampling device
random sampling
cylinder
protective gear
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PCT/CN2021/075336
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French (fr)
Chinese (zh)
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张帆
丁文兴
赵静
赵超
吴刚
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中国标准化研究院
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    • 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
    • G01N1/2273—Atmospheric sampling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/38—Diluting, dispersing or mixing samples

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  • the utility model relates to the technical field of detection devices, in particular to a random sampling device for gaseous samples.
  • Gaseous sample collection is an effective means to monitor the quality of the environment. Gaseous samples are greatly affected by meteorological factors when they are collected. There are many types of substances to be tested, low content, and large changes in concentration. Taking into account the fluidity and variability of the gas, it is collected every time The data gap of the gas sample may be relatively large, so it is necessary to collect a sufficient number of samples to reduce the error.
  • the present invention provides a random sampling device for gaseous samples to solve the problem of the lack of random sampling devices for collecting gaseous samples in the prior art.
  • a random sampling device for gaseous samples which includes:
  • a mixing sampling device includes a mixing barrel, a support, a plug and a collection barrel, the mixing barrel is arranged on the support, the bottom of the mixing barrel is funnel-shaped, and the bottom center of the mixing barrel is provided with
  • the outlet is a circle with a diameter greater than the diameter of the protective gear, and the diameter of the outlet is less than twice the diameter of the protective gear, the plug can block the outlet, and the inlet of the collecting cylinder is detachably installed on the outlet ,
  • the side of the collecting cylinder is provided with a water outlet hole.
  • the protective gear enters the collecting tube.
  • the inner diameter of the collecting tube is slightly larger than the diameter of the protective gear.
  • the protective gear flowing vertically downwards is in the collecting tube in turn Arrange, and finally disassemble the collection cylinder from the mixing barrel, select the protective gear corresponding to the serial number according to the randomly determined serial number in advance, and use the gaseous samples in these protective gears as sampling samples to achieve the purpose of random sampling.
  • a random sampling device for gaseous samples is provided, as shown in Figs. 1 to 2, including:

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
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  • Molecular Biology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

A gaseous sample random sampling apparatus, comprising a protector (1), the protector (1) being cup-shaped, and comprising a bottom cylinder (2) and a sealing cover (3), the sealing cover (3) being capable of covering an upper opening of the bottom cylinder (2), a gaseous sample being arranged within a cavity of the bottom cylinder (2), a counterweight (4) being fixedly arranged on a bottom surface of the bottom cylinder (2); a mixing and sampling apparatus (5), the mixing and sampling apparatus (5) comprising a mixing tub (6), a support (7), a plug (8) and a collecting cylinder (9), the mixing tub (6) being arranged on the support (7), the bottom of the mixing tub (6) being funnel-shaped, the center of the bottom of the mixing tub (6) being provided with an outlet (10), the outlet (10) being a circle having a diameter larger than the diameter of the protector (1) and smaller than twice the diameter of the protector (1), the plug (8) being capable of plugging the outlet (10), an inlet of the collecting cylinder (9) being detachably mounted on the outlet (10), a side surface of the collecting cylinder (9) being provided with water outlet holes (12). The apparatus achieves the goal of random sampling, has a simple structure, and is convenient to use.

Description

一种气态样本随机抽样装置Random sampling device for gaseous samples 技术领域Technical field
本实用新型涉及检测装置技术领域，具体为一种气态样本随机抽样装置。The utility model relates to the technical field of detection devices, in particular to a random sampling device for gaseous samples.
背景技术Background technique
气态样本采集是监控环境质量的有效手段，气态样本在采集时候受气象因素影响大，待测物质种类多、含量低、浓度变化大，综合考虑到气体的流动性和易变性，每次采集到气体样本的数据差距可能比较大，为此需要采集足够数量的样本，以减少误差。Gaseous sample collection is an effective means to monitor the quality of the environment. Gaseous samples are greatly affected by meteorological factors when they are collected. There are many types of substances to be tested, low content, and large changes in concentration. Taking into account the fluidity and variability of the gas, it is collected every time The data gap of the gas sample may be relatively large, so it is necessary to collect a sufficient number of samples to reduce the error.
在实际操作中，还需要使用盲选的方式，从这些样本中抽样，随机选择一些样本作为前期研究使用，但是现有技术中缺少这种随机抽样的装置。In actual operation, it is also necessary to use a blind selection method to sample from these samples and randomly select some samples for use in the preliminary research, but the prior art lacks such a random sampling device.
实用新型内容Utility model content
为此，本实用新型提供一种气态样本随机抽样装置，以解决现有技术中缺少对气态样本进行采集的随机抽样的装置的问题。To this end, the present invention provides a random sampling device for gaseous samples to solve the problem of the lack of random sampling devices for collecting gaseous samples in the prior art.
为了实现上述目的，本实用新型提供如下技术方案：In order to achieve the above purpose, the present utility model provides the following technical solutions:
根据本实用新型，提供了气态样本随机抽样装置，包括：According to the present utility model, a random sampling device for gaseous samples is provided, which includes:
护具，所述护具呈杯状，包括底部筒和封盖，所述封盖可盖合在底部筒的上口，气态样本设置在底部筒的腔体内，所述底部筒的底面固定设置有配重块；Protective gear, the protective gear is cup-shaped, including a bottom tube and a cover, the cover can be closed on the upper mouth of the bottom tube, the gaseous sample is arranged in the cavity of the bottom tube, and the bottom surface of the bottom tube is fixedly arranged With counterweight;
混合抽样装置，所述混合抽样装置包括混合桶、支架、塞块和收集筒，所述混合桶设置在支架上，所述混合桶的底部为漏斗状，并且所述混合桶的底部中心设置有出口，该出口为直径大于护具直径的圆形，并该出口的直径小于两倍的护具直径，所述塞块可封堵该出口，所述收集筒的进口可拆卸地安装在出口上，所述收集筒的侧面设置有出水孔。A mixing sampling device, the mixing sampling device includes a mixing barrel, a support, a plug and a collection barrel, the mixing barrel is arranged on the support, the bottom of the mixing barrel is funnel-shaped, and the bottom center of the mixing barrel is provided with The outlet, the outlet is a circle with a diameter greater than the diameter of the protective gear, and the diameter of the outlet is less than twice the diameter of the protective gear, the plug can block the outlet, and the inlet of the collecting cylinder is detachably installed on the outlet , The side of the collecting cylinder is provided with a water outlet hole.
进一步地，所述收集筒的进口利用法兰可拆卸地安装在出口上。Further, the inlet of the collecting cylinder is detachably installed on the outlet by using a flange.
进一步地，所述塞块的顶部固定设置有连接杆。Further, the top of the plug block is fixedly provided with a connecting rod.
进一步地，所述封盖的下口设置有内螺纹，所述底部筒的上口设置有外螺纹，封盖的下口与底部筒的上口之间采用螺纹连接。Further, the lower mouth of the cover is provided with internal threads, the upper mouth of the bottom cylinder is provided with external threads, and the lower mouth of the cover and the upper mouth of the bottom cylinder are connected by threads.
进一步地，所述出水孔的数量为多个，沿着所述收集筒的周向和轴向设置。Further, the number of the water outlet holes is multiple, which are arranged along the circumferential direction and the axial direction of the collecting cylinder.
本实用新型具有如下优点：The utility model has the following advantages:
气态样本随机抽样装置的护具一方面起到保护气态样本的目的，另一方面形成固定的直径。使用塞块将混合桶的出口封堵，并向混合桶内注入水，接着将放置有气态样本的护具放入水中，护具在水中为漂浮状态，此时设置有配重块的护具保证了护具呈垂直水面的状态，使用外界的搅拌棒可以使这些护具充分混合，在搅拌后，拔出塞块，护具跟随水向下流动，混合桶的出口直径大于护具直径而小于2倍的护具直径，避免同时两个护具进入到出口内，护具进入到收集筒内，收集筒的内径略大于护具的直径，垂直向下流动的护具依次在收集筒内排列，最后将收集筒在混合桶上拆卸下来后，根据事前随机确定的序号，选择对应序号的护具，使用这些护具内的气态样本作为抽样样本使用，达到了随意抽样的目的。The protective gear of the gaseous sample random sampling device plays the purpose of protecting the gaseous sample on the one hand, and forms a fixed diameter on the other hand. Use a plug to block the outlet of the mixing barrel and inject water into the mixing barrel. Then put the protective gear with the gaseous sample into the water. The protective gear is floating in the water. At this time, a protective gear with a counterweight is installed. Ensure that the protective gear is vertical to the water surface. The external stirring rod can be used to fully mix these protective gears. After stirring, the plug is pulled out and the protective gear flows downward with the water. The outlet diameter of the mixing barrel is larger than the diameter of the protective gear. The diameter of the protective gear is less than 2 times to prevent the two protective gears from entering the outlet at the same time. The protective gear enters the collecting tube. The inner diameter of the collecting tube is slightly larger than the diameter of the protective gear. The protective gear flowing vertically downwards is in the collecting tube in turn Arrange, and finally disassemble the collection cylinder from the mixing barrel, select the protective gear corresponding to the serial number according to the randomly determined serial number in advance, and use the gaseous samples in these protective gears as sampling samples to achieve the purpose of random sampling.
附图说明Description of the drawings
为了更清楚地说明本实用新型的实施方式或现有技术中的技术方案，下面将对实施方式或现有技术描述中所需要使用的附图作简单地介绍。显而易见地，下面描述中的附图仅仅是示例性的，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图引伸获得其它的实施附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, without creative work, other implementation drawings can be derived from the provided drawings.
本说明书所绘示的结构、比例、大小等，均仅用以配合说明书所揭示的内容，以供熟悉此技术的人士了解与阅读，并非用以限定本实用新型可实施的限定条件，故不具技术上的实质意义，任何结构的修饰、比例关系的改变或大小的调整，在不影响本实用新型所能产生的功效及所能达成的目的下，均应仍落在本实用新型所揭示的技术内容得能涵盖的范围内。The structure, ratio, size, etc. shown in this manual are only used to match the content disclosed in the manual for people familiar with this technology to understand and read. They are not used to limit the limited conditions for the implementation of this utility model, so it does not have The technical significance, any structural modification, proportional relationship change or size adjustment, shall still fall within the scope of the present utility model without affecting the effects and objectives that can be achieved by the utility model. The technical content must be covered.
图1为根据一示范性实施例示出的一种气态样本随机抽样装置的主体结构示意图；Fig. 1 is a schematic diagram showing the main structure of a gaseous sample random sampling device according to an exemplary embodiment;
图2为根据一示范性实施例示出的一种护具的结构示意图；Fig. 2 is a schematic diagram showing the structure of a protective gear according to an exemplary embodiment;
图3为根据一示范性实施例示出的一种气态样本随机抽样装置的俯视结 构示意图；Fig. 3 is a schematic top view of the structure of a random sampling device for gaseous samples according to an exemplary embodiment;
图中：1、护具；2、底部筒；3、封盖；4、配重块；5、混合抽样装置；6、混合桶；7、支架；8、塞块；9、收集筒；10、出口；11、连接杆；12、出水孔。In the picture: 1. Protector; 2. Bottom cylinder; 3. Cover; 4. Counterweight; 5. Mixed sampling device; 6. Mixing barrel; 7. Support; 8. Stopper; 9. Collecting cylinder; 10. , Outlet; 11. Connecting rod; 12. Outlet hole.
具体实施方式Detailed ways
以下由特定的具体实施例说明本实用新型的实施方式，熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本实用新型的其他优点及功效，显然，所描述的实施例是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。The following specific examples illustrate the implementation of the present utility model. Those familiar with this technology can easily understand the other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are the present utility model. Some embodiments, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present utility model.
根据本实用新型实施例，提供了一种气态样本随机抽样装置，如图1至图2所示，包括：According to an embodiment of the present invention, a random sampling device for gaseous samples is provided, as shown in Figs. 1 to 2, including:
护具1，所述护具1呈杯状，包括底部筒2和封盖3，封盖3可盖合在底部筒2的上口。The protective device 1 is cup-shaped and includes a bottom tube 2 and a cover 3, and the cover 3 can cover the upper mouth of the bottom tube 2.
气态样本设置在底部筒2的腔体内，在实际检测过程中，气态样本是瓶中或袋中，材质根据气态样本的成本选择，用于装气态样本的瓶或袋形状不一，承受撞击的能力不一，底部筒2的底面固定设置有配重块4。The gaseous sample is set in the cavity of the bottom tube 2. In the actual detection process, the gaseous sample is in a bottle or bag. The material is selected according to the cost of the gaseous sample. The shape of the bottle or bag used for the gaseous sample is different, and the shape is different. The capacity is different, and the bottom surface of the bottom tube 2 is fixedly provided with a counterweight 4.
以及混合抽样装置5，混合抽样装置5包括混合桶6、支架7、塞块8和收集筒9，混合桶6设置在支架7上，混合桶6的底部为漏斗状，如图3所示，混合桶6的底部中心设置有出口10，该出口10为直径大于护具1直径的圆形，并该出口的直径小于两倍的护具1的直径，塞块8可封堵该出口10，其中，塞块8为橡胶块或者硅胶块等均可。And the mixing sampling device 5, the mixing sampling device 5 includes a mixing barrel 6, a support 7, a plug 8 and a collection barrel 9. The mixing barrel 6 is arranged on the support 7, and the bottom of the mixing barrel 6 is funnel-shaped, as shown in FIG. 3, The center of the bottom of the mixing barrel 6 is provided with an outlet 10, the outlet 10 is a circle with a diameter greater than the diameter of the protective device 1, and the diameter of the outlet is less than twice the diameter of the protective device 1, and the plug 8 can block the outlet 10. Among them, the plug 8 can be a rubber block or a silica gel block.
在一些可选实施例中，所述塞块8的顶部固定设置有连接杆11。In some optional embodiments, the top of the plug 8 is fixedly provided with a connecting rod 11.
在一些可选实施例中，收集筒9的进口利用法兰可拆卸的安装在出口10上，收集筒9的侧面设置有出水孔12，收集筒9为不锈钢材质的筒状结构，并在侧面开设出水孔12。In some optional embodiments, the inlet of the collection tube 9 is detachably mounted on the outlet 10 by using a flange, the side of the collection tube 9 is provided with a water outlet 12, and the collection tube 9 is a cylindrical structure made of stainless steel and has a side surface.开出水孔12。 Open the water outlet 12.
在一些可选实施例中，所述封盖3的下口设置有内螺纹，所述底部筒2的上口设置有外螺纹，封盖3的下口与底部筒2的上口之间采用螺纹连接，方便将封盖3与底部筒2之间形成可拆卸连接。In some optional embodiments, the lower mouth of the cover 3 is provided with internal threads, the upper mouth of the bottom cylinder 2 is provided with external threads, and the lower mouth of the cover 3 and the upper mouth of the bottom cylinder 2 are The screw connection is convenient to form a detachable connection between the cover 3 and the bottom cylinder 2.
在一些可选实施例中，所述出水孔12的数量为多个，沿着所述收集筒9的周向和轴向设置，即沿着收集筒9的侧面上设置，可均匀分布或者非均匀分布，方便降水从收集筒9中排出。In some optional embodiments, the number of the water outlet holes 12 is multiple, and they are arranged along the circumferential and axial directions of the collecting cylinder 9, that is, along the side of the collecting cylinder 9, which can be evenly distributed or non-uniformly distributed. Evenly distributed, it is convenient for the precipitation to be discharged from the collecting drum 9.
工作原理：working principle:
先将气态样本放置在护具1内，护具1一方面起到保护气态样本的目的，另一方面将气态样本通过护具1形成固定的直径。First, place the gaseous sample in the protective gear 1. The protective gear 1 serves the purpose of protecting the gaseous sample on the one hand, and on the other hand, the gaseous sample is passed through the protective gear 1 to form a fixed diameter.
然后使用塞块8将混合桶的出口10封堵，将混合桶6内注入水，接着将放置有气态样本的护具1放入水中，护具1在水中为漂浮状态，此时设置有配重块4的护具1保证了护具1呈垂直水面的状态，使用外界的搅拌棒可以使这些护具1充分混合，在搅拌后，拔出塞块8，此时连接杆11便于拔出塞块8，护具1跟随水向下流动，进入到收集筒9内，收集筒9的内径略大于护具1的直径，垂直向下流动的护具1依次在收集筒9内排列，其中，护具1的数量为多个，最后将收集筒9在混合桶6上拆卸下来后，根据事前随机确定的序号，选择对应序号的护具1，使用这些护具1内的气态样本作为抽样样本使用，完成了对气态样本进行随机抽样的过程。Then use the plug 8 to block the outlet 10 of the mixing barrel, inject water into the mixing barrel 6, and then put the protective gear 1 with the gaseous sample into the water. The protective gear 1 is floating in the water. The protective gear 1 of the weight 4 ensures that the protective gear 1 is vertical to the water surface. The external stirring rod can make the protective gear 1 fully mixed. After stirring, pull out the plug 8 and the connecting rod 11 is easy to pull out. With the plug 8, the protective gear 1 follows the water to flow downwards and enters the collecting tube 9. The inner diameter of the collecting tube 9 is slightly larger than the diameter of the protective gear 1, and the protective gear 1 flowing vertically downward is arranged in the collecting tube 9 in turn. , The number of protective gear 1 is multiple. Finally, after the collection tube 9 is disassembled from the mixing barrel 6, the protective gear 1 with the corresponding serial number is selected according to the serial number determined randomly in advance, and the gaseous samples in these protective gear 1 are used as sampling The use of samples completes the process of random sampling of gaseous samples.
本实用新型中的气态样本随机抽样装置，具有结构简单，随机抽样方便的特点，方便对气态样本进行随机抽样。The gaseous sample random sampling device in the utility model has the characteristics of simple structure and convenient random sampling, which is convenient for random sampling of gaseous samples.
虽然，上文中已经用一般性说明及具体实施例对本实用新型作了详尽的描述，但在本实用新型基础上，可以对之作一些修改或改进，这对本领域技术人员而言是显而易见的。因此，在不偏离本实用新型精神的基础上所做的这些修改或改进，均属于本实用新型要求保护的范围。Although the general description and specific embodiments have been used to describe the present utility model in detail above, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present utility model. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the present utility model belong to the scope of protection of the present utility model.

Claims (5)

  1. 一种气态样本随机抽样装置，其特征在于：包括A random sampling device for gaseous samples, which is characterized in that it comprises
    护具，所述护具呈杯状，包括底部筒和封盖，所述封盖可盖合在底部筒的上口，气态样本设置在底部筒的腔体内，所述底部筒的底面固定设置有配重块；Protective gear, the protective gear is cup-shaped, including a bottom tube and a cover, the cover can be closed on the upper mouth of the bottom tube, the gaseous sample is arranged in the cavity of the bottom tube, and the bottom surface of the bottom tube is fixedly arranged With counterweight;
    混合抽样装置，所述混合抽样装置包括混合桶、支架、塞块和收集筒，所述混合桶设置在支架上，所述混合桶的底部为漏斗状，并且所述混合桶的底部中心设置有出口，该出口为直径大于护具直径的圆形，并该出口的直径小于两倍的护具直径，所述塞块可封堵该出口，所述收集筒的进口可拆卸地安装在出口上，所述收集筒的侧面设置有出水孔。A mixing sampling device, the mixing sampling device includes a mixing barrel, a support, a plug and a collection barrel, the mixing barrel is arranged on the support, the bottom of the mixing barrel is funnel-shaped, and the bottom center of the mixing barrel is provided with The outlet, the outlet is a circle with a diameter greater than the diameter of the protective gear, and the diameter of the outlet is less than twice the diameter of the protective gear, the plug can block the outlet, and the inlet of the collecting cylinder is detachably installed on the outlet , The side of the collecting cylinder is provided with a water outlet hole.
  2. 根据权利要求1所述的一种气态样本随机抽样装置，其特征在于：所述收集筒的进口利用法兰可拆卸地安装在出口上。The random sampling device for gaseous samples according to claim 1, wherein the inlet of the collection cylinder is detachably mounted on the outlet by a flange.
  3. 根据权利要求1所述的一种气态样本随机抽样装置，其特征在于：所述塞块的顶部固定设置有连接杆。The random sampling device for gaseous samples according to claim 1, wherein the top of the plug is fixedly provided with a connecting rod.
  4. 根据权利要求1所述的一种气态样本随机抽样装置，其特征在于：所述封盖的下口设置有内螺纹，所述底部筒的上口设置有外螺纹，所述封盖的下口与所述底部筒的上口之间采用螺纹连接。The random sampling device for gaseous samples according to claim 1, wherein the lower mouth of the cover is provided with internal threads, the upper mouth of the bottom cylinder is provided with external threads, and the lower mouth of the cover is provided with internal threads. A threaded connection is adopted with the upper mouth of the bottom cylinder.
  5. 根据权利要求1所述的一种气态样本随机抽样装置，其特征在于：所述出水孔的数量为多个，沿着所述收集筒的周向和轴向设置。The random sampling device for gaseous samples according to claim 1, wherein the number of the water outlet holes is multiple, which are arranged along the circumferential and axial directions of the collecting cylinder.
PCT/CN2021/075336 2020-03-05 2021-02-04 Gaseous sample random sampling apparatus WO2021139823A1 (en)

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CN211576689U (en) * 2020-03-05 2020-09-25 中国标准化研究院 Gaseous sample random sampling device

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US4580226A (en) * 1984-04-06 1986-04-01 Sanford H. Robbins Random sampling system
CN1731457A (en) * 2004-08-04 2006-02-08 谢江山 Lot cast device
CN203733188U (en) * 2014-03-12 2014-07-23 苏师峰 Full-automatic water floating lottery machine
CN204551198U (en) * 2015-04-02 2015-08-12 福建南方路面机械有限公司 Can the asphalt mixing plant of on-line period
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