CN204228478U - Liquefied natural gas (LNG) hand-operated sampling device - Google Patents
Liquefied natural gas (LNG) hand-operated sampling device Download PDFInfo
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- CN204228478U CN204228478U CN201420707570.XU CN201420707570U CN204228478U CN 204228478 U CN204228478 U CN 204228478U CN 201420707570 U CN201420707570 U CN 201420707570U CN 204228478 U CN204228478 U CN 204228478U
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- 238000005070 sampling Methods 0.000 title claims abstract description 75
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 46
- 239000000523 sample Substances 0.000 claims abstract description 106
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 27
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000010926 purge Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 4
- 238000007710 freezing Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 39
- 238000000034 method Methods 0.000 abstract description 15
- 238000002309 gasification Methods 0.000 abstract description 10
- 238000004321 preservation Methods 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 230000008569 process Effects 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
本实用新型提供一种液化天然气手动取样装置，包括真空保温取样探头和分析机箱；其中，所述真空保温取样探头内设置有第一低温波纹管密封阀，所述第一低温波纹管密封阀通过管线与分析机箱相连接；所述分析机箱内通过所述管线连接有单向阀、样品盘管、第二低温波纹管密封阀、第三低温波纹管密封阀；所述第二低温波纹管密封阀与所述第三低温波纹管密封阀之间安装有温度指示计，用于检测低温波纹管密封阀之间的管线内的所述样品的温度。本实用新型提供的液化天然气手动取样装置通过真空保温探头进行真空保温，温度指示计解决了装置在环境温度变化的影响下部分样品组分气化或样品气化不完全的问题，为实验室分析提供了一个比较可靠的手动取样方式。
The utility model provides a manual sampling device for liquefied natural gas, which includes a vacuum heat preservation sampling probe and an analysis cabinet; wherein, a first low temperature bellows sealing valve is arranged in the vacuum heat preservation sampling probe, and the first low temperature bellows sealing valve passes through The pipeline is connected to the analysis box; the analysis box is connected with a check valve, a sample coil, a second low-temperature bellows sealing valve, and a third low-temperature bellows sealing valve through the pipeline; the second low-temperature bellows sealing A temperature indicator is installed between the valve and the third low-temperature bellows sealing valve for detecting the temperature of the sample in the pipeline between the low-temperature bellows sealing valve. The liquefied natural gas manual sampling device provided by the utility model carries out vacuum heat preservation through a vacuum heat preservation probe, and the temperature indicator solves the problem that part of the sample components are vaporized or the sample gasification is not complete under the influence of the ambient temperature change of the device, which is useful for laboratory analysis. Provides a more reliable manual sampling method.
Description
技术领域technical field
本实用新型涉及天然气液化领域，尤其涉及一种液化天然气手动取样装置。The utility model relates to the field of natural gas liquefaction, in particular to a manual sampling device for liquefied natural gas.
背景技术Background technique
液化天然气(Liquefied Natural Gas，LNG)是天然气经压缩、冷却至其沸点(-161.5摄氏度)温度后变成的液体，其主要成分是甲烷，被公认是地球上最干净的能源，无色、无味、无毒且无腐蚀性，其体积约为同量气态天然气体积的1/600，液化天然气的重量仅为同体积水的45％左右。液化天然气的制造过程是先将气田生产的天然气净化处理，经一连串超低温液化后得到。Liquefied Natural Gas (LNG) is a natural gas that is compressed and cooled to its boiling point (-161.5 degrees Celsius) and becomes a liquid. Its main component is methane. It is recognized as the cleanest energy source on earth, colorless and odorless , Non-toxic and non-corrosive, its volume is about 1/600 of the same volume of gaseous natural gas, and the weight of liquefied natural gas is only about 45% of the same volume of water. The manufacturing process of liquefied natural gas is to first purify the natural gas produced in the gas field, and then obtain it after a series of ultra-low temperature liquefaction.
在低温液态天然气样品取样时，为了保证取到的样品是完全真实的液态样品组分，在取样过程中需要对样品进行判断，判断样品由于温度变化的影响是否会气化部分样品介质，以及加热气化是是否会出现气化不完全的问题。When sampling cryogenic liquefied natural gas samples, in order to ensure that the sample obtained is a completely real liquid sample component, it is necessary to judge the sample during the sampling process, to determine whether the sample will vaporize part of the sample medium due to the influence of temperature changes, and to heat Gasification is the question of whether there will be incomplete gasification.
实用新型内容Utility model content
在下文中给出关于本实用新型的简要概述，以便提供关于本实用新型的某些方面的基本理解。应当理解，这个概述并不是关于本实用新型的穷举性概述。它并不是意图确定本实用新型的关键或重要部分，也不是意图限定本实用新型的范围。其目的仅仅是以简化的形式给出某些概念，以此作为稍后论述的更详细描述的前序。A brief overview of the present invention is given below in order to provide a basic understanding of some aspects of the present invention. It should be understood that this summary is not an exhaustive summary of the invention. It is not intended to identify the key or important part of the present invention, nor is it intended to limit the scope of the present invention. Its purpose is merely to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.
本实用新型提供一种液化天然气手动取样装置，包括真空保温取样探头和分析机箱；The utility model provides a manual sampling device for liquefied natural gas, which includes a vacuum heat preservation sampling probe and an analysis box;
其中，所述真空保温取样探头内设置有第一低温波纹管密封阀，所述第一低温波纹管密封阀通过管线与分析机箱相连接；Wherein, the vacuum insulation sampling probe is provided with a first low-temperature bellows sealing valve, and the first low-temperature bellows sealing valve is connected to the analysis box through a pipeline;
所述分析机箱内通过所述管线连接有单向阀、样品盘管、第二低温波纹管密封阀、第三低温波纹管密封阀；A check valve, a sample coil, a second low-temperature bellows sealing valve, and a third low-temperature bellows sealing valve are connected through the pipeline in the analysis box;
所述第二低温波纹管密封阀与所述第三低温波纹管密封阀之间安装有温度指示计，用于检测位于所述第二低温波纹管密封阀与所述第三低温波纹管密封阀之间的管线内的所述样品的温度。A temperature indicator is installed between the second low-temperature bellows sealing valve and the third low-temperature bellows sealing valve for detecting The temperature of the sample within the line between.
本实用新型提供的液化天然气手动取样装置避免了所取样品不是真实的管道样品问题，通过真空保温探头进行真空保温、温度指示计解决了装置在环境温度变化的影响下部分样品组分气化或样品气化不完全的问题，为实验室分析提供了一个比较可靠的手动取样方式。The liquefied natural gas manual sampling device provided by the utility model avoids the problem that the sample taken is not a real pipeline sample, and the vacuum heat preservation and temperature indicator through the vacuum heat preservation probe solve the problem that part of the sample components are gasified or gasified under the influence of environmental temperature changes. The problem of incomplete sample gasification provides a more reliable manual sampling method for laboratory analysis.
附图说明Description of drawings
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例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本实用新型的一些实施例，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，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1为本实用新型液化天然气手动取样装置结构示意图。Fig. 1 is a structural schematic diagram of the utility model liquefied natural gas manual sampling device.
附图标记：Reference signs:
1-真空保温取样探头； 2-第一低温波纹管密封阀；1- Vacuum insulation sampling probe; 2- The first cryogenic bellows sealing valve;
3-分析机箱； 4-单向阀；3-analysis chassis; 4-one-way valve;
5-样品盘管； 6-第二低温波纹管密封阀；5-sample coil; 6-Second cryogenic bellows sealing valve;
7-第三低温波纹管密封阀； 8-温度指示计；7-The third low temperature bellows sealing valve; 8-Temperature indicator;
9-压力指示计； 10-电加热器；9-pressure indicator; 10-electric heater;
11-取样钢瓶； 12-氮气吹扫装置；11-sampling cylinder; 12-nitrogen purging device;
13-第四波纹管密封阀。13 - Fourth bellows seal valve.
具体实施方式Detailed ways
为使本实用新型实施例的目的、技术方案和优点更加清楚，下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，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。在本实用新型的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。应当注意，为了清楚的目的，附图和说明中省略了与本实用新型无关的、本领域普通技术人员已知的部件和处理的表示和描述。基于本实用新型中的实施例，本领域普通技术人员在没有付出创造性劳动的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。In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that, for the sake of clarity, representation and description of components and processes that are not relevant to the present invention and known to those of ordinary skill in the art are omitted from the drawings and descriptions. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
如图1所示，本实用新型提供了一种液化天然气手动取样装置，包括真空保温取样探头1和分析机箱3。As shown in FIG. 1 , the utility model provides a manual sampling device for liquefied natural gas, which includes a vacuum insulation sampling probe 1 and an analysis case 3 .
其中，所述真空保温取样探头1内设置有第一低温波纹管密封阀2，所述第一低温波纹管密封阀2通过管线与分析机箱3相连接；Wherein, the vacuum insulation sampling probe 1 is provided with a first low temperature bellows sealing valve 2, and the first low temperature bellows sealing valve 2 is connected to the analysis cabinet 3 through a pipeline;
所述分析机箱3内通过所述管线连接有单向阀4、样品盘管5、第二低温波纹管密封阀6、第三低温波纹管密封阀7；A check valve 4, a sample coil 5, a second low-temperature bellows sealing valve 6, and a third low-temperature bellows sealing valve 7 are connected through the pipeline in the analysis cabinet 3;
所述第二低温波纹管密封阀6与所述第三低温波纹管密封阀7之间安装有温度指示计8，用于检测位于第二低温波纹管密封阀6与第三低温波纹管密封阀7之间的管线内的样品的温度。使用者可以根据检测到的温度，来判断样品状态。例如，当温度在-161.5℃及以下时，样品状态为液态，当温度在-161.5℃以上时，样品状态为气态。A temperature indicator 8 is installed between the second low temperature bellows sealing valve 6 and the third low temperature bellows sealing valve 7 for detecting 7 between the temperature of the sample within the line. Users can judge the sample status according to the detected temperature. For example, when the temperature is at and below -161.5°C, the sample state is liquid, and when the temperature is above -161.5°C, the sample state is gaseous.
本实用新型中的液化天然气手动取样装置通过真空保温取样探头对样品进行真空保温，并通过温度指示计判断样品是否完全为液态，避免了样品液体事先气化问题，从而使得获得的液化天然气样品测量成分含量准确，为实验室提供了一个比较可靠的手动取样方式。The liquefied natural gas manual sampling device in the utility model performs vacuum heat preservation on the sample through the vacuum heat preservation sampling probe, and judges whether the sample is completely liquid through the temperature indicator, avoiding the problem of gasification of the sample liquid in advance, so that the obtained liquefied natural gas sample can be measured The composition content is accurate, providing a more reliable manual sampling method for the laboratory.
可选的，所述分析机箱3中还包括压力指示计8和电加热器10；Optionally, the analysis cabinet 3 also includes a pressure indicator 8 and an electric heater 10;
其中，所述压力指示计8安装在所述第二低温波纹管密封阀6与所述第三低温波纹管密封阀7之间，用于检测位于所述第二低温波纹管密封阀与所述第三低温波纹管密封阀之间的管线内的所述样品的压力；使用者可以根据检测到的压力，来判断样品气化的程度。例如当压力指示计上显示的压力值稳定时，此时的样品为完全气化的状态。Wherein, the pressure indicator 8 is installed between the second low temperature bellows sealing valve 6 and the third low temperature bellows sealing valve 7 for detecting The pressure of the sample in the pipeline between the third cryogenic bellows sealing valves; the user can judge the gasification degree of the sample according to the detected pressure. For example, when the pressure value displayed on the pressure indicator is stable, the sample at this time is in a completely gasified state.
所述电加热器10设置于所述样品盘管5下方，用于对所述样品盘管5中的样品进行加热至气化状态。The electric heater 10 is arranged under the sample coil 5 for heating the sample in the sample coil 5 to a vaporized state.
样品进入到所述样品盘管5内后，需要通过所述电加热器10进行加热气化，并通过所述压力指示计8判断样品在气化的时候是否完全气化，避免了样品在气化的时候出现气化不完全的问题，使得提取出的样品具有安全性，更为可靠。After the sample enters the sample coil 5, it needs to be heated and vaporized by the electric heater 10, and the pressure indicator 8 is used to judge whether the sample is completely gasified during gasification, so as to avoid the The problem of incomplete gasification occurs during gasification, which makes the extracted samples safer and more reliable.
可选的，所述液化天然气手动取样装置还包括取样钢瓶，Optionally, the LNG manual sampling device also includes a sampling cylinder,
所述取样钢瓶通过所述管线连接至所述第三低温波纹管密封阀，用于储存取样样品。The sampling steel cylinder is connected to the third cryogenic bellows sealing valve through the pipeline, and is used for storing sampling samples.
通过所述真空保温取样探头1从样品管线中进行取样，通过管线传送到所述分析机箱3中，所述分析机箱3中包括样品盘管5、单向阀4和多个低温波纹管密封阀2、6、7，并且连接这些元件的管线上还安装有温度指示计8和压力指示计9。当样品通过所述真空保温取样探头1传送至所述样品盘管5内时，观察所述温度指示计8，若显示的温度为液化天然气的沸点-161.5℃时，则取样获得的样品为液态；Sampling is carried out from the sample pipeline through the vacuum insulation sampling probe 1, and is transmitted to the analysis cabinet 3 through the pipeline, and the analysis cabinet 3 includes a sample coil 5, a one-way valve 4 and a plurality of cryogenic bellows sealing valves 2, 6, 7, and a temperature indicator 8 and a pressure indicator 9 are also installed on the pipelines connecting these elements. When the sample is transferred into the sample coil 5 through the vacuum insulation sampling probe 1, observe the temperature indicator 8, if the displayed temperature is -161.5°C, the boiling point of liquefied natural gas, the sample obtained by sampling is in a liquid state ;
当所述电加热器10对所述样品盘管5进行加热以气化样品时，观察所述压力指示计9，若显示的压力值较为稳定，则表示所述样品盘管5中的样品已经完全气化。样品完全气化后，将样品传送至取样钢瓶11中即可。When the electric heater 10 heats the sample coil 5 to vaporize the sample, observe the pressure indicator 9, if the displayed pressure value is relatively stable, it means that the sample in the sample coil 5 has been Fully vaporized. After the sample is completely vaporized, the sample can be transferred to the sampling cylinder 11.
可选的，所述温度指示计8与所述压力指示计9之间的管线还通过第四低温波纹管密封阀13连接至火炬管线。从样品管线中进行取样时，需要确定取出的样品为液态，在取出的样品没有完全为液态之前，需要通过连接至所述火炬管线的管线通道排除一些已经气化的样品。Optionally, the pipeline between the temperature indicator 8 and the pressure indicator 9 is also connected to the flare pipeline through the fourth low temperature bellows sealing valve 13 . When sampling from the sample pipeline, it is necessary to confirm that the sample taken out is in a liquid state, and before the sample taken out is not completely in a liquid state, some gasified samples need to be removed through the pipeline channel connected to the torch pipeline.
下面详细介绍一下通过所述液化天然气手动取样装置进行取样的步骤：The following describes in detail the steps of sampling through the LNG manual sampling device:
开始取样时，打开第一低温波纹管密封阀2、第二低温波纹管密封阀6和第四低温波纹管密封阀13，关闭第三低温波纹管密封阀7，使得样品通过管线传送至样品盘管5内，并根据所述温度指示计8判断所述样品盘管5内的样品是否完全为液态，若是，则关闭第一低温波纹管密封阀2和第二低温波纹管密封阀6，停止从样品管线中继续取样；若不是，则继续，直至所述温度指示计8上的温度显示为液化天然气的沸点。When sampling starts, open the first low temperature bellows sealing valve 2, the second low temperature bellows sealing valve 6 and the fourth low temperature bellows sealing valve 13, close the third low temperature bellows sealing valve 7, so that the sample is transferred to the sample tray through the pipeline and judge whether the sample in the sample coil 5 is completely liquid according to the temperature indicator 8, if so, close the first low-temperature bellows sealing valve 2 and the second low-temperature bellows sealing valve 6, and stop Continue to take samples from the sample line; if not, continue until the temperature on the temperature indicator 8 shows the boiling point of liquefied natural gas.
当样品盘管5中的样品为液态时，将所述取样钢瓶11连接好，打开第三低温波纹管密封阀7，等压力指示计9上的压力显示降至火炬压力时，关闭第四低温波纹管密封阀13；When the sample in the sample coil 5 is in a liquid state, connect the sampling cylinder 11, open the third low temperature bellows sealing valve 7, and when the pressure display on the pressure indicator 9 drops to the torch pressure, close the fourth low temperature Bellows sealing valve 13;
随后打开第二低温波纹管密封阀6，并打开所述电加热器10的加热开关，对所述样品盘管5进行加热，气化所述样品盘管5内的样品，直至所述压力指示计9上显示的压力数值不再变化，即样品完全气化时，关闭第二低温波纹管密封阀6、第三低温波纹管密封阀7和加热电源，同时关闭取样钢瓶的阀门，此时取样钢瓶中的样品为完全气化的液化天然气，取下所述取样钢瓶即可。Then open the second low-temperature bellows sealing valve 6, and turn on the heating switch of the electric heater 10 to heat the sample coil 5 and vaporize the sample in the sample coil 5 until the pressure indication The pressure value displayed on the meter 9 will not change anymore, that is, when the sample is completely vaporized, close the second low temperature bellows sealing valve 6, the third low temperature bellows sealing valve 7 and the heating power supply, and simultaneously close the valve of the sampling cylinder, and the sample is taken at this time. The sample in the steel cylinder is completely vaporized liquefied natural gas, and the sampling steel cylinder can be removed.
可选的，所述真空保温取样探头1包括：探管、保温层和绝热外壳，所述探管用于插入样品管线进行取样。Optionally, the vacuum-insulated sampling probe 1 includes: a probe tube, an insulation layer and a thermal insulation shell, and the probe tube is used for inserting into a sample pipeline for sampling.
可选的，所述探管与所述绝热外壳之间为真空状态，所述探管插入所述样品管线1/3～1/2处。所述真空保温取样探头需要从样品管线中进行取样，并且需要对所述样品进行真空保温，以防止样品在进入样品盘管之前出现部分气化的情况；将所述探头插入所述样品管线中1/3～1/2，以实现精准取样。Optionally, the probe is in a vacuum state between the probe and the thermal insulation shell, and the probe is inserted into 1/3-1/2 of the sample pipeline. The vacuum insulation sampling probe needs to be sampled from the sample pipeline, and the sample needs to be vacuum-insulated to prevent partial gasification of the sample before entering the sample coil; insert the probe into the sample pipeline 1/3～1/2 to achieve accurate sampling.
可选的，所述分析机箱3通过氮气管线还连接有氮气吹扫装置12，用于置换箱体内的气体，防止管线结冰。Optionally, the analysis cabinet 3 is also connected with a nitrogen purging device 12 through a nitrogen pipeline, which is used to replace the gas in the box and prevent the pipeline from freezing.
可选的，所述氮气吹扫装置12包括：通过所述氮气管线与所述分析机箱依次相连的氮气压力指示计、减压阀、球阀和进气口。在所述分析机箱外部增加一个氮气吹扫装置，通过氮气管线与分析机箱相连接，向所述分析机箱内输入氮气，防止管线结冰，影响样品的获得。Optionally, the nitrogen purging device 12 includes: a nitrogen pressure indicator, a pressure reducing valve, a ball valve and an air inlet sequentially connected to the analysis cabinet through the nitrogen pipeline. A nitrogen purging device is added outside the analysis box, connected to the analysis box through a nitrogen pipeline, and nitrogen is input into the analysis box to prevent the pipeline from freezing and affecting the acquisition of samples.
可选的，所述取样钢瓶11两端设置有快速接头，用于将所述取样钢瓶连接在所述分析机箱上。当开始取样时，需要首先判断样品盘管内的样品是否为液态，当样品完全为液态时，需要迅速连接好取样钢瓶，待样品完全气化后，将所述取样钢瓶从所述分析机箱上取下，此时的取样钢瓶中为完全气化的样品。Optionally, quick connectors are provided at both ends of the sampling cylinder 11 for connecting the sampling cylinder to the analysis cabinet. When starting sampling, it is first necessary to judge whether the sample in the sample coil is liquid. When the sample is completely liquid, it is necessary to quickly connect the sampling cylinder. After the sample is completely vaporized, take the sampling cylinder out of the analysis cabinet. Next, the sample cylinder at this time is a completely vaporized sample.
可选的，所述取样钢瓶内填充有惰性气体。液化天然气是易燃易爆的气体，在取样过程中为了保证安全性，需要事先在取样钢瓶中填充一定的惰性气体。Optionally, the sampling cylinder is filled with inert gas. Liquefied natural gas is a flammable and explosive gas. In order to ensure safety during the sampling process, a certain amount of inert gas needs to be filled in the sampling cylinder in advance.
本实用新型中的液化天然气手动取样装置通过温度指示计和压力指示计的示数显示判断取样的样品是否完全符合取样的要求，使得获得的液化天然气样品测量成分含量准确，提供了比较可靠的手动取样方式。The liquefied natural gas manual sampling device in the utility model judges whether the sampled samples fully meet the sampling requirements through the display of the temperature indicator and the pressure indicator, so that the measured component content of the obtained liquefied natural gas samples is accurate, and a relatively reliable manual sampling device is provided. Sampling method.
最后应说明的是：虽然以上已经详细说明了本实用新型及其优点，但是应当理解在不超出由所附的权利要求所限定的本实用新型的精神和范围的情况下可以进行各种改变、替代和变换。而且，本实用新型的范围不仅限于说明书所描述的过程、设备、手段、方法和步骤的具体实施例。本领域内的普通技术人员从本实用新型的公开内容将容易理解，根据本实用新型可以使用执行与在此所述的相应实施例基本相同的功能或者获得与其基本相同的结果的、现有和将来要被开发的过程、设备、手段、方法或者步骤。因此，所附的权利要求旨在在它们的范围内包括这样的过程、设备、手段、方法或者步骤。Finally, it should be noted that although the utility model and its advantages have been described in detail above, it should be understood that various changes can be made without departing from the spirit and scope of the utility model defined by the appended claims. Substitution and Transformation. Moreover, the scope of the present utility model is not limited to the specific embodiments of the procedures, devices, means, methods and steps described in the specification. Those of ordinary skill in the art will readily understand from the disclosure of the utility model that, according to the utility model, it is possible to use existing and existing products that perform substantially the same functions or obtain substantially the same results as the corresponding embodiments described herein. A process, device, means, method or procedure to be developed in the future. Accordingly, the appended claims are intended to include within their scope such processes, means, means, methods or steps.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769245A (en) * | 2016-12-22 | 2017-05-31 | 安徽亚格盛电子新材料有限公司 | Closed devices for sampling pyrophoric liquids and gases |
| CN106802344A (en) * | 2017-03-09 | 2017-06-06 | 中国海洋石油总公司 | A kind of LNG handling continuous sampling analytical equipment and application method |
| CN106989271A (en) * | 2017-05-09 | 2017-07-28 | 上海锐宇流体系统有限公司 | Split type vacuum thermal insulation low temperature liquefied natural gas sampling device |
| CN107631905A (en) * | 2017-08-14 | 2018-01-26 | 新地能源工程技术有限公司 | A kind of LNG sampling and analyzing methods and device |
| CN109030121A (en) * | 2018-07-31 | 2018-12-18 | 山西中电科新能源技术有限公司 | A kind of pair of vacuum cavity gas is sampled and meets the method, apparatus and its component of positive pressure analysis |
| CN112128483A (en) * | 2020-09-26 | 2020-12-25 | 潍坊新力蒙水产技术有限公司 | Liquid hydrogen vacuum conveying pipe |
| CN113640071A (en) * | 2021-07-14 | 2021-11-12 | 青岛海关技术中心 | A low-temperature liquefied natural gas sample sampling device |
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2014
- 2014-11-21 CN CN201420707570.XU patent/CN204228478U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769245A (en) * | 2016-12-22 | 2017-05-31 | 安徽亚格盛电子新材料有限公司 | Closed devices for sampling pyrophoric liquids and gases |
| CN106802344A (en) * | 2017-03-09 | 2017-06-06 | 中国海洋石油总公司 | A kind of LNG handling continuous sampling analytical equipment and application method |
| CN106989271A (en) * | 2017-05-09 | 2017-07-28 | 上海锐宇流体系统有限公司 | Split type vacuum thermal insulation low temperature liquefied natural gas sampling device |
| CN106989271B (en) * | 2017-05-09 | 2019-10-25 | 上海锐宇流体系统有限公司 | Split type vacuum thermal insulation low temperature liquefied natural gas sampling device |
| CN107631905A (en) * | 2017-08-14 | 2018-01-26 | 新地能源工程技术有限公司 | A kind of LNG sampling and analyzing methods and device |
| CN109030121A (en) * | 2018-07-31 | 2018-12-18 | 山西中电科新能源技术有限公司 | A kind of pair of vacuum cavity gas is sampled and meets the method, apparatus and its component of positive pressure analysis |
| CN112128483A (en) * | 2020-09-26 | 2020-12-25 | 潍坊新力蒙水产技术有限公司 | Liquid hydrogen vacuum conveying pipe |
| CN113640071A (en) * | 2021-07-14 | 2021-11-12 | 青岛海关技术中心 | A low-temperature liquefied natural gas sample sampling device |
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