CN112460478A - Measuring device and measuring method for drawing original data of gas cylinder inflation temperature and pressure mass curve - Google Patents
Measuring device and measuring method for drawing original data of gas cylinder inflation temperature and pressure mass curve Download PDFInfo
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- CN112460478A CN112460478A CN202011227290.5A CN202011227290A CN112460478A CN 112460478 A CN112460478 A CN 112460478A CN 202011227290 A CN202011227290 A CN 202011227290A CN 112460478 A CN112460478 A CN 112460478A
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- gas cylinder
- pressure
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- gas
- temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/043—Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0439—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/07—Actions triggered by measured parameters
- F17C2250/072—Action when predefined value is reached
- F17C2250/075—Action when predefined value is reached when full
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a measuring device and a measuring method for original data drawn by a gas cylinder inflation temperature and pressure mass curve, which solve the technical problem of high cost of measuring equipment for original data drawn by a high-pressure gas cylinder inflation temperature and pressure mass curve in the prior art. The measuring device comprises a bottle mouth tool, a temperature sensor, a pressure sensor, a paperless reading instrument and a precision balance. The measuring method mainly comprises the following steps: respectively installing bottle mouth tools at two bottle mouths of the gas bottle, and placing the gas bottle on a precision balance through the bottle mouth tools; connecting the bottle opening tool with an external inflation pipeline; opening a valve to inflate the gas cylinder to a set gas pressure, recording the temperature and the pressure at the moment, disassembling the valve and an inflation pipeline, and recording the reading of the precision balance at the moment; the corresponding pressure and the inflation quality at different temperatures can be recorded by repeating the measurement operation. The invention is derived from key technical research and application of carbon fiber reinforced high-pressure hydrogen storage device for hydrogen energy vehicles in the key research and development project of science and technology hall of Sichuan province, and the project number is 2020YFG 0356.
Description
Technical Field
The invention belongs to the technical field of drawing of gas cylinder inflation temperature and pressure mass curves, and particularly relates to a measuring device and a measuring method for drawing original data of a gas cylinder inflation temperature and pressure mass curve.
Background
In the compressed gas industry, the relationship between the temperature, the pressure and the inflation quality of a gas cylinder in the inflation process needs to be tested, so that the temperature application range of a certain type of gas cylinder, the safety design pressure of the gas cylinder and the actual filling quality of the gas cylinder in the inflation process are determined. At present, no test equipment for drawing original data of the inflating temperature rise pressure quality curve of the high-pressure gas cylinder exists in China, the test equipment is basically purchased by customization from abroad, and the price is high.
Therefore, designing a measuring device and a measuring method for drawing raw data of a gas cylinder inflation temperature and pressure mass curve to reduce the measuring cost of drawing the raw data of the high-pressure gas cylinder inflation temperature and pressure mass curve and accurately and conveniently obtain the raw data for drawing the high-pressure gas cylinder inflation temperature and pressure mass curve becomes a technical problem to be solved urgently by technical personnel in the technical field.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the device and the method for measuring the original data drawn by the inflation temperature-pressure mass curve of the gas cylinder are provided, and the technical problem of high cost of equipment for measuring the original data drawn by the inflation temperature-pressure mass curve of the high-pressure gas cylinder in the prior art is solved.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the device comprises a bottleneck tool, a temperature sensor and a pressure sensor, wherein the bottleneck tool is installed on a bottleneck of the gas cylinder and used for being detachably connected with an external gas charging pipeline, the temperature sensor and the pressure sensor are installed on the bottleneck tool and extend into the gas cylinder, the paperless reading instrument is respectively connected with the temperature sensor and the pressure sensor and used for reading, displaying and storing measurement data of the temperature sensor and the pressure sensor in real time, and the precision balance is used for weighing the weight of the gas cylinder.
Further, the bottleneck frock is including being used for dismantling the valve of being connected with external gas charging line to and the connecting pipe that is connected with the valve, and the connecting pipe can be dismantled with the gas cylinder bottleneck and be connected.
Furthermore, a mounting hole is formed in the connecting pipe, and the temperature sensor and the pressure sensor are mounted in the mounting hole.
Furthermore, a gas cylinder supporting frame which is matched with the connecting pipe and used for supporting the gas cylinder is arranged on the precision balance.
Furthermore, the gas cylinder support frame comprises a support frame body arranged on the precision balance and a U-shaped support arranged on the support frame body and matched with the connecting pipe, and the connecting pipe is positioned in the U-shaped support.
Further, the paperless reader is a GN-103A reader.
The measuring method of the measuring device for drawing the original data of the gas cylinder inflation temperature and pressure mass curve comprises the following steps:
and 5, repeating the steps 3 and 4 to record the corresponding pressure and the inflation quality at different temperatures.
Further, in step 1, before installing the bottle mouth tool at the bottle mouth of the gas cylinder, the temperature sensor and the pressure sensor are installed in the installation hole of the connection pipe, and when the bottle mouth tool is installed at the bottle mouth of the gas cylinder, the measuring heads of the temperature sensor and the pressure sensor are located in the gas cylinder.
Compared with the prior art, the invention has the following beneficial effects:
the device has the advantages of simple structure, scientific and reasonable design and convenient use, can effectively reduce the measurement cost of drawing the original data of the inflation temperature and pressure mass curve of the high-pressure gas cylinder, and can accurately and conveniently measure the inflation temperature and pressure mass curve of the high-pressure gas cylinder to draw the original data.
The invention mainly comprises a bottle mouth tool, a temperature sensor, a pressure sensor, a paperless reading instrument and a precision balance, wherein the bottle mouth tool comprises a valve which is detachably connected with an external gas charging pipeline and a connecting pipe which is connected with the valve and is detachably connected with the bottle mouth of a gas bottle, the connecting pipe is provided with a mounting hole for mounting the temperature sensor and the pressure sensor, the temperature sensor and the pressure sensor are mounted in the mounting hole, measuring heads of the temperature sensor and the pressure sensor extend into the gas bottle, the temperature sensor and the pressure sensor are respectively connected with the paperless reading instrument, the gas bottle provided with the bottle mouth tool is placed on a gas bottle supporting frame on the precision balance, thus, the gas bottle can be charged by opening the valve, when the gas is charged to a set air pressure value, the gas charging quantity (the reading of the balance minus the weight) can be measured by the precision balance, and then the corresponding pressure and the charging mass of the gas bottle at, and drawing a curve according to the tested data to obtain a temperature and pressure curve. Simple structure, convenient operation, data are accurate, and are with low costs.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic view of a bottle opening tool of the present invention.
FIG. 3 is a schematic view of a temperature sensor for assembling the bottleneck tooling of the present invention.
FIG. 4 is a schematic view of a pressure sensor for assembling the bottleneck tooling of the present invention.
Fig. 5 is a schematic view of the gas cylinder support frame of the present invention.
Wherein, the names corresponding to the reference numbers are:
the automatic detection device comprises a bottle opening tool 1, a temperature sensor 2, a pressure sensor 3, a gas cylinder 4, a paperless reading instrument 5, a precision balance 6, a gas cylinder support frame 7, a valve 11, a connecting pipe 12, a mounting hole 13, a support frame 71 and a U-shaped support 72.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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 invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and thus, it should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; of course, mechanical connection and electrical connection are also possible; alternatively, 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 by those skilled in the art according to specific situations.
As shown in fig. 1-5, the gas cylinder inflation temperature and pressure mass curve drawing original data measuring device provided by the invention has the advantages of simple structure, scientific and reasonable design and convenient use, can effectively reduce the gas cylinder inflation temperature and pressure mass curve drawing original data measuring cost, and can accurately and conveniently measure the gas cylinder inflation temperature and pressure mass curve drawing original data. The gas cylinder comprises a cylinder opening tool 1 which is arranged on the cylinder opening of the gas cylinder and is detachably connected with an external gas charging pipeline, a temperature sensor 2 and a pressure sensor 3 which are arranged on the cylinder opening tool 1 and extend into a gas cylinder 4, a paperless reading instrument 5 which is respectively connected with the temperature sensor 2 and the pressure sensor 3 and is used for reading, displaying and storing the measured data of the temperature sensor 2 and the pressure sensor 3 in real time, and a precision balance 6 used for weighing the weight of the gas cylinder 4, wherein the paperless reading instrument 5 is a GN-103A type reading instrument.
The bottle opening tool 1 comprises a valve 11 and a connecting pipe 12, wherein the valve 11 is detachably connected with an external inflation pipeline, the connecting pipe 12 is connected with the valve 11, and the connecting pipe 12 is detachably connected with the bottle opening of a gas bottle. The connecting pipe 12 is provided with a mounting hole 13, and the temperature sensor 2 and the pressure sensor 3 are mounted in the mounting hole 13.
The precision balance 6 is provided with a gas cylinder support frame 7 which is matched with the connecting pipe 12 and is used for supporting the gas cylinder 4. The gas cylinder support frame 7 comprises a support frame body 71 arranged on the precision balance 6 and a U-shaped support 72 arranged on the support frame body 71 and matched with the connecting pipe 12, and the connecting pipe 12 is positioned in the U-shaped support 72.
The invention mainly comprises a bottle mouth tool, a temperature sensor, a pressure sensor, a paperless reading instrument and a precision balance, wherein the bottle mouth tool comprises a valve which is detachably connected with an external gas charging pipeline and a connecting pipe which is connected with the valve and is detachably connected with the bottle mouth of a gas bottle, the connecting pipe is provided with a mounting hole for mounting the temperature sensor and the pressure sensor, the temperature sensor and the pressure sensor are mounted in the mounting hole, measuring heads of the temperature sensor and the pressure sensor extend into the gas bottle, the temperature sensor and the pressure sensor are respectively connected with the paperless reading instrument, the gas bottle provided with the bottle mouth tool is placed on a gas bottle supporting frame on the precision balance, thus, the gas bottle can be charged by opening the valve, when the gas is charged to a set air pressure value, the gas charging quantity (the reading of the balance minus the weight) can be measured by the precision balance, and then the corresponding pressure and the charging mass of the gas bottle at, and drawing a curve according to the tested data to obtain a temperature and pressure curve. Simple structure, convenient operation, data are accurate, and are with low costs.
The invention provides a measuring method of a measuring device for drawing original data of an inflation temperature and pressure mass curve of a gas cylinder, which comprises the following steps:
and 5, repeating the steps 3 and 4 to record the corresponding pressure and the inflation quality at different temperatures.
In the step 1, before installing the bottle mouth tool at the bottle mouth of the gas cylinder, the temperature sensor and the pressure sensor are installed in the installation hole of the connecting pipe, and when the bottle mouth tool is installed at the bottle mouth of the gas cylinder, the measuring heads of the temperature sensor and the pressure sensor are located in the gas cylinder.
By the method, the corresponding pressure and the inflation quality of the gas cylinder at different temperatures can be measured efficiently and rapidly.
The invention aims to provide a set of device for testing the relation among the temperature, the pressure and the mass of gas filled in a gas cylinder in the gas filling process, the device is provided with a temperature sensor, a pressure sensor and a high-precision balance and paperless reading instrument, and can accurately and conveniently test and read data. The bottle mouth tooling is respectively installed at the bottle mouth of the double-bottle-mouth gas bottle, two threaded through holes are formed in the bottle mouth tooling, a temperature sensor and a pressure sensor are installed on the two holes, and the sensors extend into the gas bottle; the wire connected with the sensor is connected with the paperless reading instrument and can directly read data; the gas cylinder with the valve and the sensor assembled is placed on a precision balance, the gas charging pipeline is connected with the valve, a reading instrument records and stores data in real time in the gas charging process, and when the gas charging pressure reaches a set value, the gas charging pipeline is removed, and the weight of the gas cylinder is weighed immediately. And repeatedly testing a plurality of points to form a data source, fitting and preparing a temperature rise pressure curve.
The invention has simple equipment, convenient purchase and economy; the whole device is simple to operate and has low requirement on the test environment; the method can be used for testing the temperature-rise pressure curve of oxygen, nitrogen, natural gas, hydrogen and other gases.
When the high-pressure gas storage bottle is used, bottle mouth tools are respectively installed at two bottle mouths of the high-pressure gas storage bottle; the bottle mouth tool is provided with a threaded hole, and a pressure sensor and a temperature sensor can be extended into the bottle, so that test data is more sensitive and accurate; placing the built gas cylinder above a balance, recording the temperature and the pressure when the inflation pressure reaches a set value, disassembling an inflation pipeline, and weighing the gas weight of the gas cylinder; and repeatedly operating the steps to obtain the corresponding pressure and inflation quality at different temperatures, and drawing a curve according to the tested data to obtain a temperature rise pressure curve. The inflation line has a valve system.
According to the invention, because the pressure sensor and the temperature sensor are arranged in the gas cylinder, the testing precision can be effectively improved; the device is simple, a set of devices is set up, the operation is convenient, the test is accurate, and the price is substantial. The practicability is strong, and the method is suitable for being widely popularized and applied in the technical field.
Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, but not to limit the technical solutions, and certainly not to limit the patent scope of the present invention; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; that is, the technical problems to be solved by the present invention, which are not substantially changed or supplemented by the spirit and the concept of the main body of the present invention, are still consistent with the present invention and shall be included in the scope of the present invention; in addition, the technical scheme of the invention is directly or indirectly applied to other related technical fields, and the technical scheme is included in the patent protection scope of the invention.
Claims (8)
1. The device is characterized by comprising a bottle opening tool (1) which is arranged on a bottle opening of a gas bottle and is detachably connected with an external gas charging pipeline, a temperature sensor (2) and a pressure sensor (3) which are arranged on the bottle opening tool (1) and extend into the gas bottle (4), a paperless reading instrument (5) which is connected with the temperature sensor (2) and the pressure sensor (3) respectively and is used for reading and displaying and storing measurement data of the temperature sensor (2) and the pressure sensor (3) in real time, and a precision balance (6) which is used for weighing the weight of the gas bottle (4).
2. The device for drawing the original data of the gas cylinder inflation temperature and pressure mass curve according to claim 1, wherein the cylinder opening tool (1) comprises a valve (11) detachably connected with an external inflation pipeline and a connecting pipe (12) connected with the valve (11), and the connecting pipe (12) is detachably connected with the cylinder opening of the gas cylinder.
3. The device for drawing the raw data of the gas cylinder inflation temperature-pressure mass curve according to claim 2, characterized in that a mounting hole (13) is formed in the connecting pipe (12), and the temperature sensor (2) and the pressure sensor (3) are mounted in the mounting hole (13).
4. The device for drawing the original data of the gas cylinder inflation temperature-pressure mass curve according to claim 2, wherein a gas cylinder support frame (7) which is matched with the connecting pipe (12) and used for supporting the gas cylinder (4) is arranged on the precision balance (6).
5. The device for drawing the original data of the gas cylinder inflation temperature-pressure mass curve according to claim 4, wherein the gas cylinder support frame (7) comprises a support frame body (71) arranged on the precision balance (6) and a U-shaped support (72) arranged on the support frame body (71) and matched with the connecting pipe (12), and the connecting pipe (12) is positioned in the U-shaped support (72).
6. The device for drawing the original data of the gas cylinder inflation temperature and pressure mass curve according to claim 1, characterized in that the paperless reading instrument (5) is a GN-103A type reading instrument.
7. The measurement method for drawing the original data measurement device according to the gas cylinder inflation temperature and pressure mass curve of any one of claims 1 to 6 is characterized by comprising the following steps:
step 1, respectively installing bottle mouth tools at two bottle mouths of a gas bottle;
step 2, placing the gas cylinder on a gas cylinder supporting frame of the precision balance through a bottle opening tool;
step 3, connecting the bottle opening tool with an external inflation pipeline;
step 4, opening a valve to inflate the gas cylinder to a set gas pressure, recording the temperature and the pressure at the moment, disassembling the valve and an inflation pipeline, and recording the reading of the precision balance at the moment;
and 5, repeating the steps 3 and 4 to record the corresponding pressure and the inflation quality at different temperatures.
8. The measuring method according to claim 1, wherein in the step 1, before the bottle opening tool is installed at the bottle opening of the gas cylinder, the temperature sensor and the pressure sensor are installed in the installation hole of the connecting pipe, and when the bottle opening tool is installed at the bottle opening of the gas cylinder, the measuring heads of the temperature sensor and the pressure sensor are located in the gas cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011227290.5A CN112460478A (en) | 2020-11-06 | 2020-11-06 | Measuring device and measuring method for drawing original data of gas cylinder inflation temperature and pressure mass curve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011227290.5A CN112460478A (en) | 2020-11-06 | 2020-11-06 | Measuring device and measuring method for drawing original data of gas cylinder inflation temperature and pressure mass curve |
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| CN112460478A true CN112460478A (en) | 2021-03-09 |
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| CN202011227290.5A Pending CN112460478A (en) | 2020-11-06 | 2020-11-06 | Measuring device and measuring method for drawing original data of gas cylinder inflation temperature and pressure mass curve |
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Citations (6)
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|---|---|---|---|---|
| CN1621805A (en) * | 2003-11-27 | 2005-06-01 | 赵万山 | Digital display type liquefied petroleum gas density meter device |
| JP2006214891A (en) * | 2005-02-04 | 2006-08-17 | Toyota Motor Corp | Portable measurement apparatus |
| CN205191205U (en) * | 2015-11-11 | 2016-04-27 | 刘洪光 | Liquid chlorine steel bottle safety gasification conveying system |
| JP2017219059A (en) * | 2016-06-03 | 2017-12-14 | 株式会社三五 | High pressure gas storage container |
| CN109058760A (en) * | 2018-06-20 | 2018-12-21 | 浙江海洋大学 | A kind of LNG storage and transportation monitoring device |
| CN110939863A (en) * | 2018-09-21 | 2020-03-31 | 国家能源投资集团有限责任公司 | Hydrogenation testing device |
-
2020
- 2020-11-06 CN CN202011227290.5A patent/CN112460478A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1621805A (en) * | 2003-11-27 | 2005-06-01 | 赵万山 | Digital display type liquefied petroleum gas density meter device |
| JP2006214891A (en) * | 2005-02-04 | 2006-08-17 | Toyota Motor Corp | Portable measurement apparatus |
| CN205191205U (en) * | 2015-11-11 | 2016-04-27 | 刘洪光 | Liquid chlorine steel bottle safety gasification conveying system |
| JP2017219059A (en) * | 2016-06-03 | 2017-12-14 | 株式会社三五 | High pressure gas storage container |
| CN109058760A (en) * | 2018-06-20 | 2018-12-21 | 浙江海洋大学 | A kind of LNG storage and transportation monitoring device |
| CN110939863A (en) * | 2018-09-21 | 2020-03-31 | 国家能源投资集团有限责任公司 | Hydrogenation testing device |
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Application publication date: 20210309 |