CN111482134A - Gas generating device - Google Patents
Gas generating device Download PDFInfo
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- CN111482134A CN111482134A CN202010299030.2A CN202010299030A CN111482134A CN 111482134 A CN111482134 A CN 111482134A CN 202010299030 A CN202010299030 A CN 202010299030A CN 111482134 A CN111482134 A CN 111482134A
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- gas
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- shell
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- 239000007788 liquid Substances 0.000 claims abstract description 148
- 238000000926 separation method Methods 0.000 claims abstract description 33
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims description 108
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 20
- 230000002572 peristaltic effect Effects 0.000 claims description 6
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000012159 carrier gas Substances 0.000 claims description 5
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 3
- 239000002808 molecular sieve Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000504 luminescence detection Methods 0.000 abstract 2
- 238000001514 detection method Methods 0.000 description 11
- 239000007791 liquid phase Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000002038 chemiluminescence detection Methods 0.000 description 5
- 230000005501 phase interface Effects 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008098 formaldehyde solution Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J7/00—Apparatus for generating gases
- B01J7/02—Apparatus for generating gases by wet methods
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention discloses a gas generating device, which comprises a shell, a liquid path system and a gas path system, wherein the liquid path system comprises a liquid inlet arranged at the upper part of the shell, a liquid outlet arranged at the lower part of the shell, and a liquid inlet cavity, a liquid outlet cavity and a gas-liquid separation column which are arranged in the shell, the liquid inlet cavity, the liquid outlet cavity and the liquid outlet are sequentially connected, the gas-liquid separation column is arranged in the liquid inlet cavity along the length direction of the liquid inlet cavity, the gas path system comprises a gas inlet and a gas outlet arranged at the upper part of the shell, and a filtering cavity, a filtering material, a communicating cavity, a spiral channel and a gas outlet cavity which are arranged in the shell, the gas inlet, the filtering cavity, the communicating cavity, the spiral channel, the gas outlet cavity and the filtering material are arranged in the filtering. The gas-liquid interface chemical luminescence detection device has the advantages of small volume, simple structure, high gas production speed and easy concentration adjustment and conversion, and can be used as a micro gas source device for the calibration requirement of gas-liquid interface chemical luminescence detection equipment.
Description
Technical Field
The present invention relates to the field of gas generation technology, and more particularly, to a gas generator for generating gas using a liquid-phase reagent.
Background
In recent years, gas-liquid phase interface chemiluminescence detection technology has been used for high-sensitivity rapid detection of various trace atmospheric substances, and a good effect is achieved. Compared with other detection methods, the detection equipment developed by the gas-liquid phase interface chemiluminescence detection technology has the remarkable advantages of small volume, low power consumption and simple structure, can be further developed into portable or even handheld detection equipment, and is applied to the field of various field emergency detection or rapid detection.
However, the equipment needs to be calibrated regularly based on the principle of the detection method, and has high requirements on the accuracy and stability of standard gas required by calibration due to the high-sensitivity detection characteristic; meanwhile, the characteristics of the application field of the detection equipment also require that the gas marking equipment also has the characteristics of micro volume and rapid gas production. At present, no mature gas making or distributing technology can simultaneously meet the requirements.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a device for generating gas by using a liquid-phase reagent, which solves the technical problems in the application process of the detection equipment and is beneficial to the development and application expansion of a gas-liquid phase interface chemiluminescence detection technology.
The invention discloses a gas generating device, which comprises a shell, a liquid path system and a gas path system, wherein the liquid path system comprises a liquid inlet arranged at the upper part of the shell, a liquid outlet arranged at the lower part of the shell, a liquid inlet cavity, a liquid outlet cavity and a gas-liquid separation column which are arranged in the shell, the liquid inlet cavity, the liquid outlet cavity and the liquid outlet are sequentially connected, the gas-liquid separation column is arranged in the liquid inlet cavity along the length direction of the liquid inlet cavity,
the gas path system comprises a gas inlet and a gas outlet arranged at the upper part of the shell, and a filtering cavity, a filtering material, a communicating cavity and a spiral channel which are arranged in the shell, the gas inlet, the filtering cavity, the communicating cavity, the spiral channel and the gas outlet are sequentially connected, the filtering material is arranged in the filtering cavity,
the liquid inlet cavity penetrates through the center of the spiral channel, and the outer surface of the gas-liquid separation column is communicated with the cavity of the spiral channel.
According to one embodiment of the gas generating apparatus of the present invention, the gas outlet of the gas path system is connected to a gas pump, and the liquid inlet of the liquid path system is connected to a peristaltic pump.
According to one embodiment of the gas generator of the present invention, a porous partition plate is provided between the filter chamber and the communicating chamber.
According to an embodiment of the gas generator of the present invention, the liquid outlet chamber and the liquid outlet are located at the lowest end of the liquid inlet chamber and the liquid outlet chamber directly contacts the lower end surface of the gas-liquid separation column, and the liquid outlet chamber is disposed lower than the communicating chamber and the spiral passage.
According to one embodiment of the gas generator of the present invention, the gas-liquid separation column is a column made of a highly hydrophilic porous material or fibrous material, and the filter material is activated carbon, molecular sieve or potassium permanganate alumina balls.
According to an embodiment of the gas generator of the present invention, the liquid outlet has a liquid discharge speed slightly greater than a liquid inlet speed of the liquid inlet.
According to one embodiment of the gas generating device of the present invention, the gas generating device is used for generating nitrogen dioxide gas or formaldehyde gas, the introduced liquid is a liquid containing gas or dissolved with gas, and the introduced gas is air, carrier gas or zero gas.
The device for generating gas by using the liquid phase reagent has the advantages of small volume, simple structure, high gas generation speed and easy concentration adjustment and conversion, can be used as a miniature gas source device for the calibration requirement of gas-liquid phase interface chemiluminescence detection equipment, solves the technical problems existing in the application process of the detection equipment, and is beneficial to the development and application expansion of the gas-liquid phase interface chemiluminescence detection technology.
Drawings
FIG. 1 shows a schematic perspective view of a gas generator according to an exemplary embodiment of the present invention.
Description of reference numerals:
10-a shell, 11-a liquid path system, 12-a gas path system, 13-a gas-liquid separation column and 14-a filter material;
111-liquid inlet, 112-liquid inlet cavity, 113-liquid outlet cavity, 114-liquid outlet, 121-gas inlet, 122-gas outlet, 123-filter cavity, 124-porous isolating plate, 125-communicating cavity, 126-gas outlet and 127-spiral channel.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The gas generator of the present invention will be specifically described below with reference to the accompanying drawings.
FIG. 1 shows a schematic perspective view of a gas generator according to an exemplary embodiment of the present invention.
As shown in fig. 1, according to an exemplary embodiment of the present invention, the gas generating apparatus includes a housing 10, and a liquid path system 11 and a gas path system 12, the housing 10 accommodates the liquid path system and the gas path system and provides a relatively airtight environment, the liquid path system 11 is a path for liquid to enter and exit, and the gas path 12 is a path for gas to enter and exit.
Specifically, the liquid path system 11 of the present invention includes a liquid inlet 111 disposed at the upper portion of the housing 10, a liquid outlet 114 disposed at the lower portion of the housing 10, and a liquid inlet cavity 112, a liquid outlet cavity 113 and the gas-liquid separation column 13 disposed in the housing 10, wherein the liquid inlet 111, the liquid inlet cavity 112, the liquid outlet cavity 113 and the liquid outlet 114 are connected in sequence, and the gas-liquid separation column 13 is disposed in the liquid inlet cavity 112 along the length direction of the liquid inlet cavity 112. Preferably, the intake chamber 112 is arranged vertically or obliquely downwards.
The liquid inlet 111 of the liquid path system is connected with a peristaltic pump, liquid containing gas or dissolved with gas enters from the liquid inlet 111 and reaches the gas-liquid separation column 13 under the action of the external peristaltic pump, and the liquid flows to the lower end of the gas-liquid separation column 13 under the action of gravity and is separated from the column, and then is extracted from the liquid outlet 114 through the liquid outlet cavity 113.
The air path system 12 of the present invention includes an air inlet 121 and an air outlet 122 disposed at the upper portion of the housing 10, and a filter chamber 123, a filter material 14, a communicating chamber 125 and a spiral channel 127 disposed in the housing 10, wherein the air inlet 121, the filter chamber 123, the communicating chamber 125, the spiral channel 127 and the air outlet 126 are sequentially connected, and the filter material 14 is disposed in the filter chamber 123.
An air outlet of the air path system 12 is connected with an air pump, under the action of the air pump, air, carrier gas or zero gas is pumped into the air path system 12 from an air inlet 121 and enters the filter cavity, and under the action of the filter material, impurity gas in the air, carrier gas or zero gas is filtered; the clean gas after filtration and purification reaches the spiral channel through the communicating cavity, flows through the spiral flow path under the limitation of the spiral channel, and is finally extracted from the gas outlet cavity communicated with the spiral channel through the gas outlet. Wherein the filter material can be active carbon, molecular sieve, potassium permanganate alumina ball, etc.
The liquid inlet cavity 112 penetrates through the center of the spiral passage 127, and the outer surface of the gas-liquid separation column 13 is communicated with the cavity of the spiral passage 127. The gas-liquid separation column 13 of the present invention may be a column made of a highly hydrophilic porous material or a fibrous material, such as a PP fiber column, a cotton core, a PP sintered filter core, and the like.
Because the air pump is arranged at the rear end of the air path system 12, and the filter cavity 123 filled with filter material is arranged at the front end, the cavity of the spiral channel 137 contacted with the gas-liquid separation column 13 is in a negative pressure state, so that the gas contained in the liquid distributed on the gas-liquid separation column 13 is conveniently separated from the liquid and overflows. And the structural design of the spiral channel improves the contact efficiency of the gas path and the gas-liquid separation column 13, and is more favorable for the overflow of the gas from the gas-liquid separation column 13. Meanwhile, the gas is always in a turbulent state in the spiral channel, and liquid particles brought into the gas flow occasionally can be adsorbed by the gas-liquid separation column in the subsequent contact in the contact process of the gas and the gas-liquid separation column 13, so that the gas-liquid separation effect is improved.
Preferably, a porous separation plate 125 is disposed between the filter chamber 123 and the communicating chamber 125, so that the filter material particles in the filter chamber 123 can be prevented from falling into the communicating chamber 125 at the lower end and entering the spiral channel 127, and further contacting the liquid to cause pollution. The communicating chamber 125 is used for communicating the spiral channel 127 and the filter chamber 123, and plays a role in buffering and assisting in separating liquid from the gas-liquid separation column.
Further, the liquid outlet chamber 113 and the liquid outlet 114 are located at the lowermost end of the liquid inlet chamber 112 and the liquid outlet chamber 113 directly contacts the lower end surface of the gas-liquid separation column 13, and the liquid outlet chamber 11 is preferably disposed lower than the communicating chamber and the spiral passage, which facilitates liquid discharge and effectively prevents liquid accumulation. The liquid discharge speed of the liquid outlet 114 is controlled to be slightly higher than the liquid inlet speed of the liquid inlet 111.
The gas generating device can be used for generating nitrogen dioxide gas or formaldehyde gas, the introduced gas is air, carrier gas or zero gas, and the liquid contains gas or is dissolved with gas.
The present invention will be further described with reference to the following specific examples.
Example 1: the gas generating device of the invention is used for generating nitrogen dioxide gas
Mixing the sulfuric acid solution and the sodium nitrite solution according to a set proportion by a peristaltic pump, introducing the mixture into a liquid inlet of the device to reach a gas-liquid separation column and dispersing the mixture; connecting an air outlet of the device with an air pump, and under the action of the air pump, pumping air into the device, purifying the air, flowing into the spiral channel, and discharging the air from an air outlet at the upper end; the negative pressure of the gas circuit system enables gas contained in liquid in the gas-liquid separation column to overflow from the column body and be brought into the airflow of the spiral channel so as to be discharged from the gas outlet, and the separated liquid is discharged from the liquid outlet at the lower end. The concentration of the nitrogen dioxide gas contained in the final outlet gas will depend on the concentration, flow rate, etc. of the two liquids.
Example 2: the gas generating device of the invention is used for generating formaldehyde gas
Introducing the formaldehyde solution into a liquid inlet of the device through a peristaltic pump to reach a gas-liquid separation column and be dispersed, connecting a gas outlet of the device with an air pump, and under the action of the air pump, pumping air into the device, purifying the air, flowing the air into a spiral channel, and discharging the air from a gas outlet at the upper end; the negative pressure of the gas circuit system enables volatile formaldehyde gas contained in the liquid in the gas-liquid separation column to overflow from the column body and be brought into the airflow of the spiral channel to be discharged from the gas outlet, and the separated liquid is discharged from the liquid outlet at the lower end. The concentration of the formaldehyde gas contained in the final outlet gas will depend on the concentration of the formaldehyde solution, the flow rate, the ambient temperature, etc.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (7)
1. A gas generating device is characterized by comprising a shell, a liquid path system and a gas path system,
the liquid path system comprises a liquid inlet arranged at the upper part of the shell, a liquid outlet arranged at the lower part of the shell, a liquid inlet cavity, a liquid outlet cavity and a gas-liquid separation column which are arranged in the shell, the liquid inlet cavity, the liquid outlet cavity and the liquid outlet are sequentially connected, the gas-liquid separation column is arranged in the liquid inlet cavity along the length direction of the liquid inlet cavity,
the gas path system comprises a gas inlet and a gas outlet arranged at the upper part of the shell, and a filtering cavity, a filtering material, a communicating cavity, a spiral channel and a gas outlet cavity arranged in the shell, wherein the gas inlet, the filtering cavity, the communicating cavity, the spiral channel, the gas outlet cavity and the gas outlet are sequentially connected, the filtering material is arranged in the filtering cavity,
the liquid inlet cavity penetrates through the center of the spiral channel, and the outer surface of the gas-liquid separation column is communicated with the cavity of the spiral channel.
2. The gas generator as claimed in claim 1, wherein the gas outlet of the gas path system is connected with a gas pump, and the liquid inlet of the liquid path system is connected with a peristaltic pump.
3. The gas generator as claimed in claim 1, wherein a porous partition plate is provided between the filter chamber and the communicating chamber.
4. The gas generator according to claim 1, wherein the liquid outlet chamber and the liquid outlet are located at the lowermost end of the liquid inlet chamber and the liquid outlet chamber directly contacts the lower end surface of the gas-liquid separation column, and the liquid outlet chamber is disposed lower than the communicating chamber and the spiral passage.
5. The gas generator as claimed in claim 1, wherein the gas-liquid separation column is a cylinder made of a highly hydrophilic porous material or a fibrous material, and the filter material is activated carbon, a molecular sieve or potassium permanganate alumina balls.
6. The gas-generating apparatus of claim 1, wherein the liquid outlet has a discharge velocity slightly greater than a liquid inlet velocity.
7. The gas generator according to claim 1, wherein the gas generator is configured to generate nitrogen dioxide gas or formaldehyde gas, the introduced gas is air, carrier gas or zero gas, and the introduced liquid is a liquid containing gas or a liquid in which gas is dissolved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299030.2A CN111482134A (en) | 2020-04-16 | 2020-04-16 | Gas generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299030.2A CN111482134A (en) | 2020-04-16 | 2020-04-16 | Gas generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111482134A true CN111482134A (en) | 2020-08-04 |
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ID=71798420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010299030.2A Pending CN111482134A (en) | 2020-04-16 | 2020-04-16 | Gas generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111482134A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101939505A (en) * | 2008-02-06 | 2011-01-05 | 斯塔特石油公开有限公司 | Gas-liquid separator |
| CN202277752U (en) * | 2011-09-29 | 2012-06-20 | 西安航空动力股份有限公司 | Refrigeration type drying machine gas-liquid separation device |
| CN103558212A (en) * | 2013-11-22 | 2014-02-05 | 山东省科学院海洋仪器仪表研究所 | Nitrogen dioxide detecting device and method |
| CN105738354A (en) * | 2016-05-11 | 2016-07-06 | 四川理工学院 | Gas-liquid phase chemiluminescence detection device and detection method |
| CN105842234A (en) * | 2016-05-11 | 2016-08-10 | 四川理工学院 | Self-calibration continuous and online nitrogen dioxide detection device and method |
| CN206731078U (en) * | 2017-03-24 | 2017-12-12 | 王若冰 | A kind of NO gas generators for production laboratory's rank |
| CN108697959A (en) * | 2015-12-17 | 2018-10-23 | 臼井国际产业株式会社 | Gas-liquid separation eddy flow generation device |
| CN109432828A (en) * | 2018-12-14 | 2019-03-08 | 上海正帆半导体设备有限公司 | A kind of gas-liquid separation device |
| CN109925979A (en) * | 2019-04-24 | 2019-06-25 | 四川轻化工大学 | Tubular gas-liquid interface reactor, tubular chemiluminescence detection device and detection method |
| CN110221027A (en) * | 2019-06-12 | 2019-09-10 | 四川轻化工大学 | Nitrogen dioxide standard gas real-time generator, generating device and generating method |
| CN209997604U (en) * | 2019-04-24 | 2020-01-31 | 四川轻化工大学 | Tubular gas-liquid interface reactor and tubular chemiluminescence detection device |
-
2020
- 2020-04-16 CN CN202010299030.2A patent/CN111482134A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101939505A (en) * | 2008-02-06 | 2011-01-05 | 斯塔特石油公开有限公司 | Gas-liquid separator |
| CN202277752U (en) * | 2011-09-29 | 2012-06-20 | 西安航空动力股份有限公司 | Refrigeration type drying machine gas-liquid separation device |
| CN103558212A (en) * | 2013-11-22 | 2014-02-05 | 山东省科学院海洋仪器仪表研究所 | Nitrogen dioxide detecting device and method |
| CN108697959A (en) * | 2015-12-17 | 2018-10-23 | 臼井国际产业株式会社 | Gas-liquid separation eddy flow generation device |
| CN105738354A (en) * | 2016-05-11 | 2016-07-06 | 四川理工学院 | Gas-liquid phase chemiluminescence detection device and detection method |
| CN105842234A (en) * | 2016-05-11 | 2016-08-10 | 四川理工学院 | Self-calibration continuous and online nitrogen dioxide detection device and method |
| CN206731078U (en) * | 2017-03-24 | 2017-12-12 | 王若冰 | A kind of NO gas generators for production laboratory's rank |
| CN109432828A (en) * | 2018-12-14 | 2019-03-08 | 上海正帆半导体设备有限公司 | A kind of gas-liquid separation device |
| CN109925979A (en) * | 2019-04-24 | 2019-06-25 | 四川轻化工大学 | Tubular gas-liquid interface reactor, tubular chemiluminescence detection device and detection method |
| CN209997604U (en) * | 2019-04-24 | 2020-01-31 | 四川轻化工大学 | Tubular gas-liquid interface reactor and tubular chemiluminescence detection device |
| CN110221027A (en) * | 2019-06-12 | 2019-09-10 | 四川轻化工大学 | Nitrogen dioxide standard gas real-time generator, generating device and generating method |
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Application publication date: 20200804 |
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