CN113532577A - Device and method for detecting volume of gas sampling bag - Google Patents
Device and method for detecting volume of gas sampling bag Download PDFInfo
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- CN113532577A CN113532577A CN202110778452.2A CN202110778452A CN113532577A CN 113532577 A CN113532577 A CN 113532577A CN 202110778452 A CN202110778452 A CN 202110778452A CN 113532577 A CN113532577 A CN 113532577A
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- container
- gas sampling
- sampling bag
- liquid level
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F17/00—Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies
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Abstract
The invention discloses a device and a method for detecting the volume of a gas sampling bag, which relate to the volume measurement of an object with an irregular shape, and comprise the following steps: the device comprises a container, a water inlet pipe, a water outlet pipe and a liquid level meter, wherein the container is supported with a metal cover through an internally arranged triangular bracket; the water inlet pipe is communicated with the container, and a first valve and a positive displacement flowmeter are arranged on the water inlet pipe; the drain pipe is communicated with the container and is provided with a second valve; and the liquid level meter is arranged on one side of the container, and the joint of the upper end of the liquid level meter and the container is higher than the height position of the metal cover. The invention is used for measuring the volume of an irregularly-shaped object.
Description
Technical Field
The invention relates to volume measurement of an irregularly-shaped object, in particular to a device and a method for detecting the volume of a gas sampling bag.
Background
The gas sampling bag is widely applied to the fields of petrochemical industry, environmental monitoring and the like and the gas sample collection and preservation in scientific experiments, and the material of the gas sampling bag can be aluminum-plastic composite membrane, Devex, PVF (polyvinyl fluoride), PVDF (polyvinylidene fluoride), FEP, Fluode and the like.
It is necessary to measure the volume of the gas sample after the gas is collected, or to know whether the gas sample changes in volume due to reaction/escape during the long-term storage of the gas sample. However, the gas sampling bag has elasticity, and after being filled with gas, the gas sampling bag is irregular in shape, and the volume is not easy to measure.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a simple device and a method for detecting the volume of a gas sampling bag, which can be used for measuring the volume of similar irregularly-shaped objects.
To achieve the above object, the present invention provides an apparatus for detecting a volume of a gas sampling bag, comprising:
a container which supports a metal cover through an internally arranged triangular bracket;
the water inlet pipe is communicated with the container, and a first valve and a volumetric flowmeter are arranged on the water inlet pipe;
the drain pipe is communicated with the container and is provided with a second valve; and the number of the first and second groups,
the liquid level meter is arranged on one side of the container, and the connecting position of the upper end of the liquid level meter and the container is higher than the height position of the metal cover.
The apparatus for detecting the volume of a gas sampling bag as described above, further wherein the container is cylindrical.
The device for detecting the volume of the gas sampling bag is characterized in that 4 triangular brackets are symmetrically arranged in the container close to the upper part.
The device for detecting the volume of the gas sampling bag does not leak or rust after the container is filled with water.
The device for detecting the volume of the gas sampling bag is characterized in that the metal cover is made of stainless steel.
The device for detecting the volume of the gas sampling bag as described above, further, the diameter of the metal cover is slightly smaller than the diameter of the container.
A method for detecting the volume of a gas sampling bag using the apparatus for detecting the volume of a gas sampling bag as described above, comprising the steps of:
1) sealing a gas interface of the gas sampling bag by using a sealing film;
2) taking out the metal cover, putting the gas sampling bag into the container, and horizontally covering the metal cover on the support;
3) closing a valve of a drain pipe, connecting a water inlet pipe with a faucet, opening the faucet, opening a valve of the water inlet pipe, injecting water into the container until the metal cover is completely immersed in the liquid level, but the liquid level is still lower than the height of the joint of the liquid level meter and the container, closing the valve of the water inlet pipe, and recording the liquid level height H displayed by the liquid level meter and the reading V1 of the flow meter at the moment;
4) lifting the metal cover, taking out the gas sampling bag after paying attention to the fact that water drops on the surface of the cover do not drop outside the container, beating the bag to enable the water drops attached to the surface of the bag to drop back into the container, and covering the metal cover again;
5) opening a valve of the water inlet pipe, continuously injecting water into the container until the liquid level height displayed by the liquid level meter reaches H, immediately closing the valve of the water inlet pipe, recording the reading V2 of the flow meter at the moment, and calculating (V2-V1) to obtain the volume of the gas sampling bag;
6) and after the measurement is finished, closing the water faucet, and opening the valve of the water outlet pipe to drain the water in the container.
Compared with the prior art, the invention has the advantages that: the device of the invention is simple, can simply and conveniently measure the volume of the object with irregular shape, and is particularly suitable for monitoring the volume change of the gas sampling bag in the process of storing the gas sample.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a volume measurement device according to an embodiment of the present invention.
1. A container; 2. a liquid level meter; 3. a second valve; 4. a drain pipe; 5. a water inlet pipe; 6. a first valve; 7. a flow meter; 8. a first bracket; 9. a metal cover; 10. a second support.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example (b):
it should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.
In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a volume measuring device according to an embodiment of the present invention.
The invention provides a device and a method for detecting the volume of a gas sampling bag, which are used for measuring the volume of an irregularly-shaped object.
As shown in FIG. 1, the volume measuring device is an open cylindrical container 1, which is required to be free from leakage and rust after being filled with water. Inside the container, there are 4 triangular supports (only the first support 8 and the second support 10 are shown schematically) for supporting a stainless steel metal cover 9, which has a diameter slightly smaller than the inside diameter of the container and can be taken out of the container easily and serves to prevent the air bag from floating out of the water. The right side of the container is connected with a liquid level meter 2, and the joint of the upper end of the liquid level meter and the container is higher than the position of the metal cover. The left side of the container is provided with a water inlet pipe 5 and a water outlet pipe 4 close to the bottom respectively, the two pipes are respectively connected with a first valve 6 and a second valve 3, and the first valve 6 of the water inlet pipe is connected with the container 1 through a positive displacement flowmeter 7.
The volume measurement of the gas sampling bag is carried out with reference to the following steps:
1) sealing a gas interface of the gas sampling bag by using a sealing film;
2) the metal cover 9 is taken out, the gas sampling bag is placed in the container 1, and the cover is horizontally covered on the supports 8 and 10;
3) closing the drain pipe valve 3, connecting the water inlet pipe 5 with a water tap, opening the water inlet pipe valve 6, injecting water into the container 1 until the metal cover 9 is completely immersed by the liquid level, but the liquid level is still lower than the height of the joint of the liquid level meter and the container, closing the water inlet pipe valve 6, and recording the liquid level height H displayed by the liquid level meter 2 and the reading V1 of the flow meter 7 at the moment.
4) Lifting the metal cover 9, carefully taking out the gas sampling bag after taking care that water drops on the surface of the cover do not drop out of the container 1, slightly beating the gas sampling bag to enable the water attached to the surface of the gas sampling bag to drop back into the container 1, and covering the metal cover 9 again;
5) and (3) opening the valve 6 of the water inlet pipe, continuing to inject water into the container 1 until the liquid level height displayed by the liquid level meter 2 reaches H, immediately closing the valve 6 of the water inlet pipe, recording the reading V2 of the flow meter 7 at the moment, and calculating (V2-V1) to obtain the volume of the gas sampling bag.
6) After the measurement is finished, the water tap is closed, the valve 3 of the water outlet pipe is opened, and the water in the container 1 is drained.
Example 1:
the volume of the collected gas is detected.
Referring to the measuring steps, the net volume Vnet of the gas sampling bag is measured before the gas is collected, the volume Vgas of the gas sampling bag is measured after the gas is collected, and the volume of the collected gas is obtained by calculating (Vgas-Vnet).
Example 2:
the change in volume of the gas sampling bag during the retention of the gas sample is measured.
Referring to the detection steps, firstly, the volume Vfirst of the gas sampling bag at the initial stage of gas sample storage is detected, then the volume Vlast of the gas sampling bag is detected at the later stage of storage, and the calculation (Vfirst-Vlast) is the volume change during the gas sample storage.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (7)
1. An apparatus for detecting a volume of a gas sampling bag, comprising:
a container which supports a metal cover through an internally arranged triangular bracket;
the water inlet pipe is communicated with the container, and a first valve and a volumetric flowmeter are arranged on the water inlet pipe;
the drain pipe is communicated with the container and is provided with a second valve; and the number of the first and second groups,
the liquid level meter is arranged on one side of the container, and the connecting position of the upper end of the liquid level meter and the container is higher than the height position of the metal cover.
2. The apparatus for sensing volume of a gas sampling bag of claim 1, wherein the container is cylindrical.
3. The apparatus according to claim 1, wherein 4 of said triangular supports are symmetrically disposed within said container proximate above.
4. The apparatus for detecting the volume of a gas sampling bag of claim 1, wherein the container is leak-free and rust-free after filling with water.
5. The apparatus of claim 1, wherein the metal cover is stainless steel.
6. The apparatus for detecting the volume of a gas sampling bag of claim 2, wherein the diameter of the metal lid is slightly smaller than the diameter of the container.
7. A method for detecting the volume of a gas sampling bag using the apparatus for detecting the volume of a gas sampling bag according to any one of claims 1 to 6, comprising the steps of:
1) sealing a gas interface of the gas sampling bag by using a sealing film;
2) taking out the metal cover, putting the gas sampling bag into the container, and horizontally covering the metal cover on the support;
3) closing a valve of a drain pipe, connecting a water inlet pipe with a faucet, opening the faucet, opening a valve of the water inlet pipe, injecting water into the container until the metal cover is completely immersed in the liquid level, but the liquid level is still lower than the height of the joint of the liquid level meter and the container, closing the valve of the water inlet pipe, and recording the liquid level height H displayed by the liquid level meter and the reading V1 of the flow meter at the moment;
4) lifting the metal cover, taking out the gas sampling bag after paying attention to the fact that water drops on the surface of the cover do not drop outside the container, beating the bag to enable the water drops attached to the surface of the bag to drop back into the container, and covering the metal cover again;
5) opening a valve of the water inlet pipe, continuously injecting water into the container until the liquid level height displayed by the liquid level meter reaches H, immediately closing the valve of the water inlet pipe, recording the reading V2 of the flow meter at the moment, and calculating (V2-V1) to obtain the volume of the gas sampling bag;
6) and after the measurement is finished, closing the water faucet, and opening the valve of the water outlet pipe to drain the water in the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110778452.2A CN113532577A (en) | 2021-07-09 | 2021-07-09 | Device and method for detecting volume of gas sampling bag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110778452.2A CN113532577A (en) | 2021-07-09 | 2021-07-09 | Device and method for detecting volume of gas sampling bag |
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| CN113532577A true CN113532577A (en) | 2021-10-22 |
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| CN202110778452.2A Pending CN113532577A (en) | 2021-07-09 | 2021-07-09 | Device and method for detecting volume of gas sampling bag |
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| CN207894474U (en) * | 2018-01-24 | 2018-09-21 | 安徽省恒泰动力科技有限公司 | A kind of equipment measuring piston combustion bowl volume |
| CN207907989U (en) * | 2018-01-11 | 2018-09-25 | 常山向阳轴承有限公司 | A kind of bearing ball volume detection device |
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2021
- 2021-07-09 CN CN202110778452.2A patent/CN113532577A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052948A (en) * | 2010-11-16 | 2011-05-11 | 济南民天面粉有限责任公司 | Method for measuring volume of steamed bread |
| CN106949943A (en) * | 2017-03-15 | 2017-07-14 | 湖北工程学院 | Gas volume measurement apparatus and fuel cell module |
| CN207907989U (en) * | 2018-01-11 | 2018-09-25 | 常山向阳轴承有限公司 | A kind of bearing ball volume detection device |
| CN207894473U (en) * | 2018-01-24 | 2018-09-21 | 安徽省恒泰动力科技有限公司 | A kind of measuring device of piston combustion bowl volume |
| CN207894474U (en) * | 2018-01-24 | 2018-09-21 | 安徽省恒泰动力科技有限公司 | A kind of equipment measuring piston combustion bowl volume |
| CN109269587A (en) * | 2018-09-28 | 2019-01-25 | 嘉兴学院 | A kind of device and its application method of laboratory measurement biogas volume |
| CN109520587A (en) * | 2018-12-11 | 2019-03-26 | 顺丰科技有限公司 | Wrap up volume measurement device and method |
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