CN114624387B - Gas distribution device in high-pressure liquid and gas distribution method thereof - Google Patents
Gas distribution device in high-pressure liquid and gas distribution method thereof Download PDFInfo
- Publication number
- CN114624387B CN114624387B CN202011455809.5A CN202011455809A CN114624387B CN 114624387 B CN114624387 B CN 114624387B CN 202011455809 A CN202011455809 A CN 202011455809A CN 114624387 B CN114624387 B CN 114624387B
- Authority
- CN
- China
- Prior art keywords
- gas
- pressure
- liquid
- cavity
- switch valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000012528 membrane Substances 0.000 claims abstract description 34
- 238000000926 separation method Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000010935 stainless steel Substances 0.000 claims description 26
- 229910001220 stainless steel Inorganic materials 0.000 claims description 23
- 238000007599 discharging Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 239000008213 purified water Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims description 3
- 239000008399 tap water Substances 0.000 claims description 3
- 235000020679 tap water Nutrition 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000009210 therapy by ultrasound Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 2
- 238000012937 correction Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0006—Calibrating gas analysers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/007—Arrangements to check the analyser
-
- G01N33/0072—
Abstract
The invention provides a device for distributing gas in high-pressure liquid, which comprises a gas-liquid separation membrane, a pressure cavity, a pressure sensor, a six-way valve, a high-pressure water pump and a gas collection port. The air distribution method of the invention is that a high-pressure water pump connected with a six-way valve is used for injecting liquid into a pressure cavity, a switch valve II is opened, air in the pressure cavity is discharged, the switch valve II is closed after the pressure cavity is filled with the liquid, and the pressure is preliminarily increased to a certain pressure; and after the pressure is stabilized, the switch valve I is closed, the six-way valve is removed, and the gas-liquid system is fully mixed by adopting a temperature control and ultrasonic device. The invention can accurately and quantitatively introduce gas with fixed volume into the high-pressure liquid environment, adopts a hydraulic driving mode, effectively solves the problem of gas configuration in the high-pressure liquid environment and improves the configuration accuracy; the structural design is reasonable, and the gas distribution method is simple to operate.
Description
Technical Field
The invention relates to the technical field of sample preparation, in particular to a gas distribution device in high-pressure liquid and a gas distribution method thereof, which are used for correcting a gas sensor in a high-pressure liquid environment.
Background
The distribution under high pressure environment, at present mostly distribute the gas to among the gas pressure vessel, except conventional gaseous air supply, usually adopt the form of liquefaction air supply, mainly be two: the gas is cooled and liquefied and then is injected into the cavity; the liquefied gas is introduced after being gasified. Neither of the two methods can directly and accurately quantify the amount of the introduced gas, and meanwhile, a gas distribution method for directly and quantitatively injecting the gas into the liquid environment has no mature solution. In addition, currently, a gas sensor calibration method in a high-pressure environment usually only uses pure gas for calibration, and environmental factors of high-pressure liquid are not taken into consideration, which may cause a certain measurement deviation. A better solution for correcting a gas sensor in a high-pressure liquid environment is not obtained at present.
Disclosure of Invention
According to the proposed gas distribution method that the two currently adopted liquefied gas sources can not directly and accurately quantify the amount of the introduced gas, and simultaneously, the gas is directly and quantitatively injected into the liquid environment, and a mature solution is not available; regarding to a gas sensor correction method in a high-pressure environment, only pure gas is usually adopted for correction, environmental factors of high-pressure liquid are not taken into consideration, certain measurement deviation can be caused, and a gas distribution device in the high-pressure liquid and a gas distribution method thereof are provided for solving the technical problem that a better solution is not obtained for correcting the gas sensor in the high-pressure liquid environment at present. The invention mainly utilizes a high-pressure water pump connected with a six-way valve to inject liquid into a pressure cavity, opens a switch valve II, discharges air in the pressure cavity, closes the switch valve II after being filled with the liquid, and initially pressurizes the pressure cavity to a certain pressure; after quantitative gas is introduced into the quantitative ring, the six-way valve is switched, the gas in the quantitative ring is introduced into the pressure cavity under the pushing of the high-pressure water pump, the pressure is increased to corresponding pressure, the switch valve I is closed after the pressure is stabilized, the six-way valve is removed, and the gas-liquid system is fully mixed by adopting a temperature control and ultrasonic device, so that the gas is quantitatively introduced into the high-pressure liquid environment, the problem of gas distribution in the high-pressure liquid environment is effectively solved, and the configuration accuracy of the gas-liquid system is improved.
The technical means adopted by the invention are as follows:
an apparatus for distributing gas in a high pressure liquid, comprising: the device comprises a gas acquisition port, a gas-liquid separation membrane, a pressure cavity, a pressure sensor, a six-way valve and a high-pressure water pump;
the pressure cavity is integrally a sphere, a hollow cavity structure is arranged in the pressure cavity and used for containing liquid and gas, a cylindrical cavity is embedded in the top of the pressure cavity, the gas-liquid separation membrane is placed in the cylindrical cavity, a porous stainless steel plate is placed on one side, close to the pressure cavity, of the gas-liquid separation membrane, a sintered stainless steel support plate is placed on the other side of the gas-liquid separation membrane, the other side of the sintered stainless steel support plate is connected with the gas collection port, the gas collection port is used for being connected with a gas measuring device, the gas-liquid separation membrane is used for isolating liquid, and the porous stainless steel plate and the sintered stainless steel support plate are both used for supporting the gas-liquid separation membrane and preventing the gas-liquid separation membrane from being damaged;
a connector I is arranged on the pressure cavity and is opposite to the lower part of the cylindrical cavity, and the connector I is connected with the six-way valve through a switch valve I; one side, close to one end of the cylindrical cavity, of the pressure cavity is provided with at least one interface II, and each interface II is connected with a switch valve II; the other side of the pressure cavity, which is close to one end of the cylindrical cavity, is at least provided with a port III, and each port III is connected with the pressure sensor;
the six-way valve is provided with one position, two positions, three positions, four positions, five positions and six positions, wherein the one position is connected with the high-pressure water pump, the two positions are connected with the switch valve I, a quantitative ring for storing gas is arranged between the three positions and the six positions, the four positions are gas inlets, and the five positions are gas outlets and connected with the check valve.
Further, the pressure cavity is made of stainless steel or titanium alloy.
Furthermore, the gas-liquid separation membrane is made of an organic silicon membrane and has a maximum pressure resistance of 100MPa.
Further, the measurement range of the pressure sensor is 0-100 MPa.
Furthermore, the switch valve I and the switch valve II are both high-pressure-resistant valves, and the highest pressure resistance is 100MPa.
The invention also provides a gas distribution method of the device for distributing gas in high-pressure liquid, which comprises the following steps:
connecting one position of a six-way valve with two positions, connecting three positions with four positions, connecting five positions with six positions, opening a switch valve I, injecting liquid into a pressure cavity through the one position and the two positions in sequence by using a high-pressure water pump, opening a switch valve II, discharging air in the pressure cavity, closing the switch valve II after the pressure cavity is filled with the liquid, and preliminarily pressurizing to 1/4-1/3 of the pressure to be configured;
opening a check valve, and introducing quantitative gas into the four-way quantitative ring;
step three, switching the six-way valve to enable one position to be connected with six positions, two positions to be connected with three positions, four positions to be connected with five positions, opening the switch valve I, introducing gas stored in the quantitative ring into the pressure cavity through the one position, the six positions, the three positions, the two positions and the switch valve I in sequence under the pushing of the high-pressure water pump, pressurizing to the pressure to be configured, and closing the switch valve I after the pressure is stable;
and step four, fully mixing the gas-liquid system.
Further, the specific steps of the fourth step are as follows:
after the switch valve I is closed, the six-way valve part is removed, and a temperature control and ultrasonic device is adopted to control the temperature and the ultrasonic wave of the pressure cavity, so that the gas-liquid system in the pressure cavity is fully mixed.
Further, the liquid is purified water, tap water or ambient water.
Compared with the prior art, the invention has the following advantages:
1. the device for distributing gas in high-pressure liquid and the gas distribution method thereof can fill gas into the quantitative ring under normal pressure, thereby accurately and quantitatively filling gas with fixed volume into the high-pressure liquid environment.
2. The gas distribution method adopts a hydraulic driving mode, reduces the influence of gas diffusion on gas distribution as much as possible, avoids the mixing of other impurities except target gas and target liquid, effectively solves the problem of gas distribution in a high-pressure liquid environment, and improves the distribution accuracy.
3. The device for distributing gas in high-pressure liquid and the gas distribution method thereof provided by the invention have the advantages of reasonable structural design, simple operation of the gas distribution method and capability of providing a scheme for automatic gas distribution.
In conclusion, the technical scheme of the invention can solve the problems that the two liquefied gas sources adopted at present can not directly and accurately quantify the amount of the introduced gas, and meanwhile, the gas distribution method for directly and quantitatively injecting the gas into the liquid environment has no mature solution; regarding a gas sensor correction method in a high-pressure environment, only pure gas is usually adopted for correction, environmental factors of high-pressure liquid are not taken into consideration, certain measurement deviation can be caused, and a better solution method for correcting a gas sensor in the high-pressure liquid environment is not obtained at present.
For the reasons, the invention can be widely popularized in the fields of sample preparation and the like of gas distribution devices using high-pressure liquid.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a gas distribution device in high-pressure liquid according to the invention.
In the figure: 1. a gas collection port; 2. a gas-liquid separation membrane; 3. sintering the stainless steel support plate; 4. a porous stainless steel plate; 5. a pressure chamber; 6. a pressure sensor; 7. a six-way valve; 71. a bit; 72. two bits; 73. three bits; 74. four bits; 75. five bits; 76. six bits; 8. a high pressure water pump; 9. a dosing ring; 10. a switch valve I; 11. a check valve; 12. and a switch valve II.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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 invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in the figures, the present invention provides a device for distributing gas in high pressure liquid, comprising: the gas-liquid separation device comprises a gas collection port 1, a gas-liquid separation membrane 2, a pressure cavity 5, a pressure sensor 6, a six-way valve 7 and a high-pressure water pump 8.
The gas-liquid separation device is characterized in that the pressure cavity 5 is integrally a sphere, a hollow cavity structure is arranged inside the pressure cavity and used for containing liquid and gas, a cylinder cavity is embedded into the top of the pressure cavity, the gas-liquid separation membrane 2 is placed in the cylinder cavity, the gas-liquid separation membrane 2 is close to one side of the pressure cavity 5, a porous stainless steel plate 4 is placed on one side of the pressure cavity, a sintered stainless steel support plate 3 is placed on the other side of the gas-liquid separation membrane, and the other side of the sintered stainless steel support plate 3 is connected with the gas collection port 1. The gas collecting port 1 is used for being connected with a gas measuring device, the gas-liquid separation membrane 2 is used for isolating liquid and only allowing gas to permeate, and the porous stainless steel plate 4 and the sintered stainless steel support plate 3 are both used for supporting the gas-liquid separation membrane 2 and preventing the gas-liquid separation membrane 2 from being damaged. The gas collecting port 1, the gas-liquid separation membrane 2, the sintered stainless steel support plate 3 and the porous stainless steel plate 4 are used for conveniently measuring the partial pressure or concentration of gas in the cavity of the pressure cavity 5 after gas-liquid balance. The working process comprises the following steps: the gas in the liquid in the cavity penetrates through the gas-liquid separation membrane 2 to enter the gas collection port 1, and the gas collection port 1 can be connected with an existing gas detection device (without limitation to a sensor, an analyzer and the like).
A connector I is arranged on the pressure cavity 5 and right below the cylindrical cavity, and the connector I is connected with the six-way valve 7 through a switch valve I10; one side, close to one end of the cylindrical cavity, of the pressure cavity 5 is at least provided with a connector II, and each connector II is connected with a switch valve II 12; the other side of one end, close to the cylindrical cavity, of the pressure cavity 5 is at least provided with one interface III, and each interface III is connected with the pressure sensor 6.
The six-way valve 7 is provided with a first position 71, a second position 72, a third position 73, a fourth position 74, a fifth position 75 and a sixth position 76 ((1), (2), (3), (4), (5) and (6)), wherein the first position 71 is connected with the high-pressure water pump 8, the second position 72 is connected with the switch valve I10, a quantitative ring 9 for storing gas is arranged between the third position 73 and the sixth position 76, the fourth position 74 is a gas inlet, and the fifth position 75 is a gas outlet and is connected with the check valve 11.
The pressure chamber 5 is made of stainless steel or titanium alloy.
The gas-liquid separation membrane 2 is made of an organic silicon membrane and has the highest pressure resistance of 100MPa.
The measuring range of the pressure sensor 6 is 0-100 MPa.
The switch valve I10 and the switch valve II 12 are both high-pressure-resistant valves, and the highest pressure resistance is 100MPa.
The invention also provides a gas distribution method of the device for distributing gas in high-pressure liquid, which comprises the following steps:
step one, connecting a first position 71 and a second position 72 of a six-way valve 7, connecting a third position 73 and a fourth position 74, connecting a fifth position 75 and a sixth position 76, opening a switch valve I10, injecting liquid into a pressure cavity 5 through the first position 71 and the second position 72 in sequence by using a high-pressure water pump 8, opening a switch valve II 12, discharging air in the pressure cavity 5, closing the switch valve II 12 after the pressure cavity 5 is filled with the liquid, and primarily pressurizing to 1/4-1/3 of the pressure to be configured;
step two, opening the check valve 11, and introducing quantitative gas into the quantitative ring 9 through a quadbit 74;
step three, switching the six-way valve 7 to enable one position 71 to be connected with a six position 76, two positions 72 to be connected with a three position 73, four positions 74 to be connected with a five position 75, opening the switch valve I10, leading the gas stored in the quantitative ring 9 into the pressure cavity 5 through the one position 71, the six position 76, the three positions 73, the two positions 72 and the switch valve I10 in sequence under the pushing of the high-pressure water pump 8, pressurizing to the pressure to be configured, and closing the switch valve I10 after the pressure is stable;
and step four, fully mixing the gas-liquid system.
The fourth step comprises the following specific steps:
after the valve I10 is opened and closed, the six-way valve 7 is removed, and the temperature control and ultrasonic device is adopted to control the temperature and the ultrasonic wave of the pressure cavity 5, so that the gas-liquid system in the pressure cavity 5 is fully mixed.
The liquid is purified water, tap water or environmental water.
Example 1
A device for distributing gas in high-pressure liquid comprises a gas-liquid separation membrane 2, a pressure cavity 5, a pressure sensor 6 (the model is ELECALL, ELE-801,0-100 MPa), a six-way valve 7, a high-pressure water pump 8 and a gas collection port 1. The pressure cavity 5 is integrally a sphere (the volume is 100mL and the material is stainless steel), a cylindrical cavity (the diameter is 38mm and the length is 50 mm) is embedded in the pressure cavity, a gas-liquid separation membrane 2 (the diameter is 38mm and the pressure resistance is 100 MPa) is placed in the cylindrical cavity, a porous stainless steel plate 4 (the diameter is 38mm and the thickness is 0.5 mm) is placed on one side, close to the pressure cavity 5, of the gas-liquid separation membrane 2, a sintered stainless steel support plate 3 (the diameter is 38mm and the thickness is 5 mm) is placed on the other side, and a gas collection port 1 is formed in the other side of the sintered stainless steel support plate 3; the pressure cavity 5 is additionally provided with 3 interfaces, one of the interfaces is arranged below the pressure cavity 5 and opposite to the cylindrical cavity and is connected with the six-way valve 7 through the switch valve I10, and the other two interfaces are arranged on two sides of one end, close to the cylindrical cavity, of the pressure cavity 5 and are respectively used for connecting the pressure sensor 6 and the switch valve II 12 (pressure resistance of 100 MPa); one position 71 of the six-way valve 7 is connected with the high-pressure water pump 8, the two position 72 is connected with the switch valve I10 (withstand pressure 100 MPa), a quantitative ring 9 is arranged between the three position 73 and the six position 76, the four position 74 is a gas inlet, the five position 75 is a gas outlet, and the six-way valve is connected with the check valve 11.
Example 2
The apparatus for distributing gas in high pressure liquid as described in example 1, except that: the pressure chamber 5 is made of titanium alloy.
Example 3
The gas distributing method for the gas distributing device in high pressure liquid includes the following steps: connecting one position 71 and two positions 72 of the six-way valve 7, connecting three positions 73 and four positions 74, connecting five positions 75 and six positions 76, opening the switch valve I10, injecting purified water into the pressure cavity 5 through the one position 71 and the two positions 72 in sequence by using the high-pressure water pump 8, opening the switch valve II 12, discharging air in the pressure cavity 5, closing the switch valve II 12 after the pressure cavity 5 is filled with liquid, and primarily pressurizing to 20MPa (namely, continuously pressurizing by using the high-pressure water pump 8 connected with the six-way valve 7, wherein the switch valve I10 is still in an open state at the moment); the check valve 11 is opened and 10mLCO is introduced into the quantitative ring 9 through the four-position 74 2 (the check valve 11 is a one-way valve, the check valve 11 needs to be opened to prevent air from flowing back to the quantitative ring 9, the original air in the quantitative ring 9 needs to be discharged when the gas is introduced, the gas needs to be continuously introduced before sample introduction to ensure the purity of the gas; the required time is calculated according to the gas introduction rate and the volume of the quantitative ring 9, and the subsequent operation is carried out after the gas is introduced into the quantitative ring 9); the six-way valve 7 is switched to enable the first position 71 to be connected with the sixth position 76, the second position 72 to be connected with the third position 73, the fourth position 74 to be connected with the fifth position 75, and CO stored in the quantitative ring 9 is driven by the high-pressure water pump 8 to pass through the first position 71, the sixth position 76, the third position 73, the second position 72 and the switch valve I10 in sequence 2 And introducing the mixture into the pressure cavity 5, pressurizing to 60MPa, and closing the switch valve I10 after the pressure is stabilized.
Example 4
The air distribution method as described in embodiment 4, the difference is that: ambient water, which is seawater, is injected into the pressure chamber 5 by a high pressure water pump 8.
Example 5
The air distribution method of the embodiment 4 is characterized in that: after the pressure is stabilized, the switch valve I10 is closed, the six-way valve 7 is removed, and the existing temperature control and ultrasonic device is used for controlling the temperature and performing ultrasonic treatment on the pressure cavity 5, so that the gas-liquid system in the pressure cavity 5 is fully mixed (the temperature control and ultrasonic device can accelerate the gas-liquid system mixing).
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; 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; and 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.
Claims (8)
1. An apparatus for distributing gas in a high pressure liquid, comprising: the device comprises a gas collecting port (1), a gas-liquid separation membrane (2), a pressure cavity (5), a pressure sensor (6), a six-way valve (7) and a high-pressure water pump (8);
the gas-liquid separation device is characterized in that the pressure cavity (5) is integrally spherical, a hollow cavity structure is arranged inside the pressure cavity and used for containing liquid and gas, a cylindrical cavity is embedded into the top of the pressure cavity, the gas-liquid separation membrane (2) is placed in the cylindrical cavity, a porous stainless steel plate (4) is placed on one side, close to the pressure cavity (5), of the gas-liquid separation membrane (2), a sintered stainless steel support plate (3) is placed on the other side of the gas-liquid separation membrane (2), the other side of the sintered stainless steel support plate (3) is connected with the gas collection port (1), the gas collection port (1) is used for being connected with a gas measurement device, the gas-liquid separation membrane (2) is used for isolating liquid, and the porous stainless steel plate (4) and the sintered stainless steel support plate (3) are both used for supporting the gas-liquid separation membrane (2) and preventing the gas-liquid separation membrane (2) from being damaged;
a connector I is arranged on the pressure cavity (5) and right below the cylindrical cavity, and the connector I is connected with the six-way valve (7) through a switch valve I (10); one side, close to one end of the cylindrical cavity, of the pressure cavity (5) is provided with at least one interface II, and each interface II is connected with a switch valve II (12); the other side of one end, close to the cylindrical cavity, of the pressure cavity (5) is at least provided with a port III, and each port III is connected with the pressure sensor (6);
the six-way valve (7) is provided with a first position (71), a second position (72), a third position (73), a fourth position (74), a fifth position (75) and a sixth position (76), wherein the first position (71) is connected with the high-pressure water pump (8), the second position (72) is connected with the switch valve I (10), a quantitative ring (9) for storing gas is arranged between the third position (73) and the sixth position (76), the fourth position (74) is a gas inlet, and the fifth position (75) is a gas outlet and is connected with the check valve (11);
injecting liquid into the pressure cavity (5) by using a high-pressure water pump (8) connected to the six-way valve (7), opening a switch valve II (12), discharging air in the pressure cavity (5), closing the switch valve II (12) after the pressure cavity is filled with the liquid, and preliminarily pressurizing to 1/4-1/3 of the pressure to be configured; after quantitative gas is introduced into the quantitative ring (9), the six-way valve (7) is switched, the gas in the quantitative ring (9) is introduced into the pressure cavity (5) under the pushing of the high-pressure water pump (8) and is pressurized to corresponding pressure, the switch valve I (10) is closed after the pressure is stabilized, the six-way valve (7) is removed, and the gas-liquid system is fully mixed by adopting a temperature control and ultrasonic device, so that the quantitative introduction of the gas into the high-pressure liquid environment is realized, the gas distribution problem in the high-pressure liquid environment is effectively solved, and the configuration accuracy of the gas distribution device is improved.
2. Device for distributing gas in high-pressure liquid according to claim 1, characterized in that the material of the pressure chamber (5) is stainless steel or titanium alloy.
3. The apparatus for distributing gas in high-pressure liquid according to claim 1, wherein the gas-liquid separation membrane (2) is made of an organic silicon membrane and has a maximum pressure resistance of 100MPa.
4. Device for distributing gas in a high pressure liquid according to claim 1, characterised in that the pressure sensor (6) measures in the range of 0-100 MPa.
5. The device for distributing gas in high-pressure liquid according to claim 1, wherein the switch valve I (10) and the switch valve II (12) are high-pressure-resistant valves with the maximum pressure resistance of 100MPa.
6. A method of dispensing gas from a device for dispensing gas from a high pressure liquid as claimed in any of claims 1 to 5, comprising the steps of:
step one, connecting one position (71) and two positions (72) of a six-way valve (7), connecting three positions (73) and four positions (74), connecting five positions (75) and six positions (76), opening a switch valve I (10), injecting liquid into a pressure cavity (5) through the one position (71) and the two positions (72) in sequence by using a high-pressure water pump (8), opening a switch valve II (12), discharging air in the pressure cavity (5), closing the switch valve II (12) after the pressure cavity (5) is filled with the liquid, and primarily pressurizing to 1/4-1/3 of the pressure to be configured;
step two, opening the check valve (11), and introducing quantitative gas into the quantitative ring (9) through a four-position valve (74);
step three, switching the six-way valve (7), connecting a first position (71) with a sixth position (76), connecting a second position (72) with a third position (73), connecting a fourth position (74) with a fifth position (75), opening the switch valve I (10), introducing gas stored in the quantitative ring (9) into the pressure cavity (5) through the first position (71), the sixth position (76), the third position (73), the second position (72) and the switch valve I (10) in sequence under the pushing of the high-pressure water pump (8), pressurizing to a pressure to be configured, and closing the switch valve I (10) after the pressure is stable;
and step four, fully mixing the gas-liquid system.
7. The air distribution method according to claim 6, characterized in that the specific steps of the fourth step are as follows:
after the switch valve I (10) is closed, the six-way valve (7) is removed, and a temperature control and ultrasonic device is adopted to control the temperature and carry out ultrasonic treatment on the pressure cavity (5), so that the gas-liquid system in the pressure cavity (5) is fully mixed.
8. A method of distributing gas according to claim 6 or 7, wherein the liquid is purified water, tap water or ambient water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011455809.5A CN114624387B (en) | 2020-12-10 | 2020-12-10 | Gas distribution device in high-pressure liquid and gas distribution method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011455809.5A CN114624387B (en) | 2020-12-10 | 2020-12-10 | Gas distribution device in high-pressure liquid and gas distribution method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114624387A CN114624387A (en) | 2022-06-14 |
| CN114624387B true CN114624387B (en) | 2023-03-21 |
Family
ID=81895308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011455809.5A Active CN114624387B (en) | 2020-12-10 | 2020-12-10 | Gas distribution device in high-pressure liquid and gas distribution method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114624387B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708442B (en) * | 2009-09-04 | 2011-08-24 | 山东中惠仪器有限公司 | Fully automatic standard gas preparation device |
| CN203414322U (en) * | 2013-09-03 | 2014-01-29 | 卢宝来 | Gas quantification sampling device |
| CN204346803U (en) * | 2014-12-10 | 2015-05-20 | 武汉市天虹仪表有限责任公司 | For the controllable pressure of gaseous sample and the dynamic dilution device of humidity |
| CN104515761B (en) * | 2014-12-20 | 2017-05-17 | 国家海洋局第二海洋研究所 | High-precision optical dissolved oxygen sensor calibration method and device |
| CN208943860U (en) * | 2018-10-09 | 2019-06-07 | 江苏春潮科技发展有限公司 | A kind of high-precision dilution distributing instrument |
| CN212083556U (en) * | 2020-04-20 | 2020-12-04 | 苏州深科微新材料科技有限公司 | Pipeline type on-line gas measuring device |
-
2020
- 2020-12-10 CN CN202011455809.5A patent/CN114624387B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114624387A (en) | 2022-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8806922B2 (en) | Sample injector for liquid chromatography, particularly for high performance liquid chromatography | |
| US20210190666A1 (en) | Device and method for measuring horizontal/vertical permeability of hydrate reservoir | |
| CN103711462A (en) | Leaching experimental facility for in-situ leaching uranium mining | |
| CN110160928A (en) | Realize the multi-joint flexible wall permeameter and application method that two kinds of solution continuously permeate | |
| CN102229888B (en) | Feedback-type pneumatic-control pressure stress cell culture device | |
| CN112858139B (en) | Multi-connected flexible wall permeameter for infinite volume injection under graded confining pressure and test method | |
| US20110268856A1 (en) | Method for maturing wine and device for implementing same | |
| CN114624387B (en) | Gas distribution device in high-pressure liquid and gas distribution method thereof | |
| RU165514U1 (en) | LIQUEFIED GAS SAMPLING DEVICE | |
| US9835597B2 (en) | Device capable of pressurization and associated systems and methods | |
| CN106324266B (en) | The flow path control system and flow path control method of automatic analyzer | |
| US20060249459A1 (en) | Method and device for injecting sample | |
| CN111855522B (en) | Core holder, high-temperature high-pressure core spontaneous imbibition experimental device and method | |
| CN116698897A (en) | Mineralizing and sealing CO in salty water layer 2 Measuring device and measuring method | |
| JP5169035B2 (en) | Pressure test method and apparatus | |
| CN206489044U (en) | Stable increase and decrease pressure device for shale core stress sensitive evaluation experimental | |
| CN112094738B (en) | Marine full-environment hydrocarbon gas oxidation process simulation experiment device and method | |
| US20200298191A1 (en) | Volumetric and gravimetric fill level for producing a gas mixture | |
| CN210221869U (en) | Gas displacement experimental device capable of combining CT scanning | |
| CN209673555U (en) | The synchronous loading device of interior external pressure for muddy water diametral compression test | |
| CN102305346B (en) | Low-temperature liquid recovery equipment based on automatic control | |
| CN103801203B (en) | Based on the rigid container gas mixing device and method of built-in flexible containers | |
| KR20110085268A (en) | Liquid chromatography device | |
| CN203414326U (en) | Standard substance allocating and sampling device | |
| CN107192786B (en) | The enrichment preparation facilities and its method of gas in a kind of water body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |