CN109738579A - A kind of standard gas generating apparatus based on osmos tube - Google Patents
A kind of standard gas generating apparatus based on osmos tube Download PDFInfo
- Publication number
- CN109738579A CN109738579A CN201811344990.5A CN201811344990A CN109738579A CN 109738579 A CN109738579 A CN 109738579A CN 201811344990 A CN201811344990 A CN 201811344990A CN 109738579 A CN109738579 A CN 109738579A
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- gas
- permeation chamber
- osmos tube
- generating apparatus
- standard gas
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Abstract
The present invention relates to a kind of standard gas generating apparatus based on osmos tube, gas circuit occurs including calibrating gas, calibrating gas occurs gas circuit and is successively arranged intake valve, pressure reducing valve, permeation chamber component, air outlet valve, permeation chamber component is made of osmos tube, permeation chamber, temperature sensor, heater, osmos tube and temperature sensor are set in permeation chamber, and heater is close to permeation chamber surface；Intake valve is used to control the on-off of carrier gas, pressure reducing valve is for being adjusted to constant flow after depressurizing carrier gas, permeation chamber component is used to control permeation chamber internal temperature by temperature sensor and heater, osmos tube is set to ooze out gas molecule with constant rate of speed, to generate the calibrating gas of constant density, air outlet valve is used to control the on-off of outputting standard gas.It is of the invention whole without storage high pressure pernicious gas；When needing standard gas type to change or exceeding validity period, it is only necessary to be replaced to modular permeation chamber component；Uplink transportation cost is small, simple to operation.
Description
Technical field
The present invention relates to a kind of gas generating unit more particularly to a kind of standard gas generating apparatus based on osmos tube.
Background technique
With carrying out in a deep going way for long-term manned task, spacefarer will increasingly grow in the residence time of space.Micro nocuousness
Gas will be very important to health, the life security of spacefarer.Trace harmful gases must be removed and be examined online
It surveys.Trace harmful gases online detection instrument needs calibrating gas to carry out periodic dosages and calibration, to guarantee that equipment is qualitatively quasi-
True property, quantitative accuracy, escort for the health and safety of spacefarer.
Stabilization is provided with gas generator usually using configured standard gas bottle or the production of external producer on ground at present
The standard gas of concentration, but its requirement for being unable to satisfy space industry.Had by the major defect that standard gas bottle provides standard gas:
1, high pressure gas cylinder is needed to store standard gas, the standard gas of trace harmful gases online detection instrument is mostly pernicious gas,
There are some potential safety problemss using the pernicious gas of high pressure for rail；
2, configured standard gas bottle time validity period is shorter, and mostly within 1 year, the company's of being required to gas cylinder is whole after expiring every time
Body replacement, weight make more greatly uplink transportation cost higher；
3, configured standard gas bottle ingredient is fixed, and is needed if you need to adjust together with gas cylinder integral replacing, weight makes more greatly uplink
Transportation cost is higher.
4, same ingredient if desired a variety of concentration when, it is necessary to the configuration for increasing standard gas bottle, increase volume weight and
Transportation cost.
The major defect that the orchestration generator produced by external producer provides standard gas has:
1, equipment size is larger, needs to occupy the in-orbit space resources of more preciousness；
2, weight of equipment is big, and uplink transportation cost is higher；
3, need to use the high pressure pernicious gas of compression storage, there are security risks；
4, need the long period that could generate the calibrating gas of steady concentration, efficiency is lower, is unable to satisfy in-orbit quick
Use demand.
Therefore developing a kind of device that is safe, small-sized, can quickly generating calibrating gas is to realize that trace harmful gases exist
The a great problem that line monitoring needs solve.
Summary of the invention
The object of the present invention is to provide a kind of standard gas generating apparatus based on osmos tube, are being needed with realizing using mark
When gas, can safely, quickly generate calibrating gas, the generation of standard gas can be stopped when not needing at any time, whole process is without storage
High pressure pernicious gas；And when standard gas type being needed to change, it is only necessary to be replaced to modular permeation chamber component；With
And when needing to adjust the variation of standard gas concentration, it is only necessary to adjustment control temperature or gas supply flow；Uplink transportation cost is small, simple easy
Operation.
The present invention provides a kind of standard gas generating apparatus based on osmos tube, including calibrating gas, and gas circuit, mark occurs
Quasi- gas occurs gas circuit and is successively arranged intake valve, pressure reducing valve, permeation chamber component, air outlet valve, and permeation chamber component is by osmos tube, infiltration
Chamber, temperature sensor, heater are constituted, and osmos tube and temperature sensor are set in permeation chamber, and heater is close to permeation chamber surface；
Intake valve is used to control the on-off of carrier gas, and pressure reducing valve is permeated for being adjusted to constant flow after depressurizing carrier gas
Chamber component is used to control permeation chamber internal temperature by temperature sensor and heater, and osmos tube is made to ooze out gas with constant rate of speed
Molecule, to generate the calibrating gas of constant density, air outlet valve is used to control the on-off of outputting standard gas.
Further, permeation chamber component is replaceable modularization permeation chamber component.
Further, which further includes the carrier gas gas source connecting with intake valve, and carrier gas gas source is to carry
Gas cylinder.
Further, which further includes the standard gas outlet connecting with air outlet valve, air outlet valve and standard gas
The flowmeter for monitoring outputting standard gas flow is equipped between outlet.
Further, the pressure sensing of nebulizer gas pressure after being used to monitor decompression is equipped between pressure reducing valve and permeation chamber component
Device.
Further, heater is the filiform connecting with permeation chamber surface wrap or strip heater, or is and permeation chamber
Surface package pastes the flake heater of connection.
Further, flow is calculated as mass flowmenter or volume flowmeter, and pressure sensor is mechanical compression table or electricity
Sub- pressure sensor, intake valve and air outlet valve are solenoid valve or hand-operated valve.
Further, at least one osmos tube is equipped in permeation chamber.
Further, which includes one or more permeation chamber components in parallel.
Further, which includes that gas circuit occurs for one or more calibrating gas in parallel.
According to the above aspect of the present invention, calibrating gas generates on demand by the standard gas generating apparatus based on osmos tube, needing
When using standard gas, can safely, quickly generate calibrating gas, can stop the generation of standard gas when not needing at any time, whole process without
Need storage high pressure pernicious gas；When standard gas type being needed to change, it is only necessary to be replaced to modular permeation chamber component；
Uplink transportation cost is small, simple to operation；After osmos tube exceeds validity period, it is only necessary to be carried out more to modular permeation chamber component
It changes, uplink transportation cost is small, simple to operation；When standard gas concentration being needed to change, the temperature by adjusting permeation chamber can be with
Change the rate of osmos tube exudation gas molecule, to change the concentration of output standard gas；When standard gas concentration being needed to change, lead to
Overregulating pressure reducing valve pressure can change carrier gas flux, to change the concentration of output standard gas.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the standard gas generating apparatus based on osmos tube of the present invention.
Figure label:
1- carrier gas bottle；2- intake valve；3- pressure reducing valve；4- pressure sensor；5- permeation chamber component；51- osmos tube；52- seeps
Saturating chamber；53 temperature sensors；54- heater；6- air outlet valve；7- flowmeter；The outlet of 8- standard gas.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Join shown in Fig. 1, present embodiments provides a kind of standard gas generating apparatus based on osmos tube, including calibrating gas
Gas circuit occurs, calibrating gas occurs gas circuit and is successively arranged intake valve 2, pressure reducing valve 3, permeation chamber component 5, air outlet valve 6, permeation chamber group
Part 5 is made of osmos tube 51, permeation chamber 52, temperature sensor 53, heater 54, and osmos tube 51 and temperature sensor 53 are set to and seep
In saturating chamber 52, heater 54 is close to 52 surface of permeation chamber；Permeation chamber component is using replaceable highly integrated in the present embodiment
Modularization permeation chamber component.
Intake valve 2 is used to control the on-off of carrier gas, and pressure reducing valve 3 is seeped for being adjusted to constant flow after depressurizing carrier gas
Saturating chamber component 5 makes osmos tube 51 with constant for controlling 52 internal temperature of permeation chamber by temperature sensor 53 and heater 54
Rate oozes out gas molecule, and to generate the calibrating gas of constant density, air outlet valve 6 is used to control the on-off of outputting standard gas.
By the standard gas generating apparatus based on osmos tube, calibrating gas generates on demand, when needing using standard gas,
Can safely, quickly generate calibrating gas, the generation of standard gas can be stopped when not needing at any time, whole process has without storage high pressure
Evil gas；When standard gas type being needed to change, it is only necessary to be replaced to modular permeation chamber component；Uplink transportation cost
It is small, simple to operation；After osmos tube exceeds validity period, it is only necessary to be replaced to modular permeation chamber component, uplink transport
Cost is small, simple to operation；When standard gas concentration being needed to change, the temperature by adjusting permeation chamber can change osmos tube and seep
The rate of gas molecule out, to change the concentration of output standard gas；When standard gas concentration being needed to change, by adjusting pressure reducing valve
Pressure can change carrier gas flux, to change the concentration of output standard gas.
In the present embodiment, which further includes the carrier gas gas source connecting with intake valve 1.
In the present embodiment, carrier gas gas source is carrier gas bottle 1.
In the present embodiment, which further includes the standard gas outlet 8 connecting with air outlet valve 6, air outlet valve 6
The flowmeter 7 for monitoring outputting standard gas flow is equipped between standard gas outlet 8.
In the present embodiment, the pressure of nebulizer gas pressure after being used to monitor decompression is equipped between pressure reducing valve 3 and permeation chamber component 5
Sensor 4.
In the present embodiment, heater 54 is the filiform connecting with permeation chamber surface wrap or strip heater, or for
The flake heater that permeation chamber surface is close to.
In the present embodiment, flowmeter 7 is mass flowmenter or volume flowmeter, and pressure sensor 4 is mechanical compression
Table or electronic pressure transmitter, intake valve 2 and air outlet valve 6 are solenoid valve or hand-operated valve.
In the present embodiment, it is equipped at least one osmos tube 51 in permeation chamber 52, can be used for generating multicomponent hybrid standard
Gas.
In the present embodiment, which includes one or more permeation chamber components 5 in parallel, be can be used for
Generate component standard mixture.
In the present embodiment, which includes that gas circuit occurs for one or more calibrating gas in parallel,
By controlling different gas circuit valve combinations, it can be used for generating a variety of different component standard mixtures.
The standard gas generating apparatus provides carrier gas by carrier gas bottle 1, and intake valve 2 controls the on-off of carrier gas, and carrier gas is through subtracting
Pressure valve 3 is adjusted to constant flow after depressurizing, pressure sensor 4 is used to detect depressurize after carrier gas pressure, in permeation chamber component 5
Temperature sensor 53 and heater 54 control permeation chamber internal temperature, enable osmos tube 51 with constant rate of speed exudation gas point
Son after carrier gas flows through permeation chamber component 5, since gas flow rate constant, gas molecule ooze out constant rate, that is, can produce constant dense
The calibrating gas of degree, air outlet valve 6 control the on-off of outputting standard gas, and flowmeter 7 is used to monitor the flow of outputting standard gas,
The calibrating gas of generation is exported from standard gas outlet 8.
The above is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is several improvement and
Modification, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of standard gas generating apparatus based on osmos tube, which is characterized in that gas circuit, the mark occurs including calibrating gas
Quasi- gas occurs gas circuit and is successively arranged intake valve, pressure reducing valve, permeation chamber component, air outlet valve, the permeation chamber component by osmos tube,
Permeation chamber, temperature sensor, heater are constituted, and the osmos tube and temperature sensor are set in the permeation chamber, the heating
Device is close to the permeation chamber surface；
The intake valve is used to control the on-off of carrier gas, and the pressure reducing valve is used to be adjusted to constant flow after depressurizing carrier gas,
The permeation chamber component is used to control the permeation chamber internal temperature by the temperature sensor and heater, makes the infiltration
Pipe oozes out gas molecule with constant rate of speed, and to generate the calibrating gas of constant density, the air outlet valve is for controlling outputting standard
The on-off of gas.
2. the standard gas generating apparatus according to claim 1 based on osmos tube, which is characterized in that the permeation chamber group
Part is replaceable modularization permeation chamber component.
3. the standard gas generating apparatus according to claim 1 or 2 based on osmos tube, which is characterized in that further include with
The carrier gas gas source of the intake valve connection, the carrier gas gas source are carrier gas bottle.
4. the standard gas generating apparatus according to claim 3 based on osmos tube, which is characterized in that further include with it is described
The standard gas outlet of air outlet valve connection, is equipped with the stream for monitoring outputting standard gas flow between the air outlet valve and standard gas outlet
Meter.
5. the standard gas generating apparatus according to claim 4 based on osmos tube, which is characterized in that the pressure reducing valve with
The pressure sensor of nebulizer gas pressure after being used to monitor decompression is equipped between the permeation chamber component.
6. the standard gas generating apparatus according to claim 1 or 2 based on osmos tube, which is characterized in that the heating
Device is the filiform connecting with the permeation chamber surface wrap or strip heater, or the sheet to be close to the permeation chamber surface
Heater.
7. the standard gas generating apparatus according to claim 5 based on osmos tube, which is characterized in that the flow is calculated as
Mass flowmenter or volume flowmeter, the pressure sensor are mechanical compression table or electronic pressure transmitter, the air inlet
Valve and air outlet valve are solenoid valve or hand-operated valve.
8. the standard gas generating apparatus according to any one of claims 1 to 7 based on osmos tube, which is characterized in that institute
It states and is equipped at least one osmos tube in permeation chamber.
9. the standard gas generating apparatus according to any one of claims 1 to 7 based on osmos tube, which is characterized in that packet
Include the permeation chamber component of one or more parallel connections.
10. the standard gas generating apparatus according to any one of claims 1 to 7 based on osmos tube, which is characterized in that packet
Gas circuit occurs for the calibrating gas for including one or more parallel connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811344990.5A CN109738579A (en) | 2018-11-13 | 2018-11-13 | A kind of standard gas generating apparatus based on osmos tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811344990.5A CN109738579A (en) | 2018-11-13 | 2018-11-13 | A kind of standard gas generating apparatus based on osmos tube |
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| CN201811344990.5A Pending CN109738579A (en) | 2018-11-13 | 2018-11-13 | A kind of standard gas generating apparatus based on osmos tube |
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Cited By (4)
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| CN110124585A (en) * | 2019-05-27 | 2019-08-16 | 四川轻化工大学 | A kind of micrometeor standard gas generating apparatus, system and method |
| CN110658304A (en) * | 2019-09-06 | 2020-01-07 | 暨南大学 | Gas concentration quantification system and method based on catalytic conversion |
| CN111013415A (en) * | 2019-12-25 | 2020-04-17 | 江苏智闻智能传感科技有限公司 | Standard gas generation system based on temperature control |
| CN112611838A (en) * | 2020-11-27 | 2021-04-06 | 中国人民解放军63919部队 | Permeation cavity component protection device for standard gas generation device |
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Application publication date: 20190510 |