CN105352767A - Moisture-prevention gas chamber device and gas collection system thereof - Google Patents
Moisture-prevention gas chamber device and gas collection system thereof Download PDFInfo
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- CN105352767A CN105352767A CN201510831703.3A CN201510831703A CN105352767A CN 105352767 A CN105352767 A CN 105352767A CN 201510831703 A CN201510831703 A CN 201510831703A CN 105352767 A CN105352767 A CN 105352767A
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- gas
- chamber
- cell device
- steam
- air chamber
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
Abstract
The invention discloses a moisture-prevention gas chamber device. The moisture-prevention gas chamber device comprises at least one gas chamber structure used for sensing the corresponding gas concentration in sampled gas. Each gas chamber structure comprises an upper gas chamber, a middle gas chamber and a lower gas chamber, wherein a gas head is placed in the upper gas chamber, a condensation chamber is formed between the middle gas chamber and the lower gas chamber and comprises an upper condensation chamber body and a lower condensation chamber body, an explosive-proof piece is arranged between the upper condensation chamber body and the gas head, a filter piece is arranged between the upper condensation chamber body and the lower condensation chamber body. A gas nozzle is arranged at the bottom of the lower condensation chamber body. The invention further discloses a gas collection system with the moisture-prevention gas chamber device. The condensation chamber, the filter piece and the explosive-proof piece are additionally arranged on the basis of an existing gas chamber structure, and therefore the problem that because moisture is contained in sampled gas, the gas concentration correctly sensed by an optical sensor is influenced can be effectively solved.
Description
Technical field
The invention belongs to urban operating mechanism technical field, be specifically related to a kind of anti-steam gas cell device and there is the gas collecting system of this device.
Background technology
In places such as municipal sewage system pipe network, sewage treatment plant, septic tank, methane-generating pit, destructor plants, can produce and exist multiple murder by poisoning, the hazardous gas such as flammable, explosive, as methane, sulfuretted hydrogen, carbon monoxide etc.The present inventor finds through research, when the gas of acquisition system to these places is sampled, owing to being mingled with steam and microparticle pollutant etc. in sample gas, if these steam can not get effective separation and control, enter into the optical sensor minute surface of induction gas, can cause the precision of optical sensor probe and have a strong impact on, thus allow the metrical error of optical sensor become large, affect its serviceable life simultaneously.
Summary of the invention
If can not get effective separation and control for the prior art steam gathered in gas, enter into the optical sensor minute surface of induction gas, can cause the precision of optical sensor probe and have a strong impact on, thus allow the metrical error of optical sensor become large, affect the technical matters in its serviceable life simultaneously, the invention provides a kind of anti-steam gas cell device.
To achieve these goals, the present invention adopts following technical scheme:
A kind of anti-steam gas cell device, comprise at least one cover for responding to the air chamber structure of corresponding gas concentration in sample gas, this air chamber structure comprises upper chamber, middle air chamber and lower chamber, gas chieftain is placed with in described upper chamber, condensation chamber is formed between described middle air chamber and lower chamber, this condensation chamber comprises upper condensing chamber and lower condensation chamber, flame proof sheet is provided with between described upper condensing chamber and gas chieftain, between described upper condensing chamber and lower condensation chamber, be provided with filter, and be provided with air nozzle in the bottom of described lower condensation chamber.
In anti-steam gas cell device provided by the invention, have additional condensation chamber, this condensation chamber whole condensation separation can fall the steam in sample gas, and under gravity, condensed condensate water flows into sampled point automatically by draft tube; And filter is provided with between upper condensing chamber and lower condensation chamber, this filter can stop the impurity particle in sample gas; Simultaneously, flame proof sheet is provided with between upper condensing chamber and gas chieftain, this flame proof sheet only allow gas molecule through, steam is blocked in condensation chamber again, thus can solve the problem correctly responding to gas concentration in sample gas owing to affecting optical sensor containing steam well, enhance the serviceable life of optical sensor simultaneously.
Further, described anti-steam gas cell device comprises methane air chamber and sulfuretted hydrogen air chamber two overlaps air chamber structure, and this two covers air chamber structure is connected in series.
Further, described air chamber structure adopts 304 stainless steels to be prepared from.
Further, the material of described filter is stainless steel.
Further, described flame proof sheet be only allow gas molecule through micron order flame proof sheet.
The present invention also discloses a kind of gas collecting system, comprises central processing controller, solenoid valve optical coupler controller, vacuum pump optical coupler controller, the solenoid valve with sample gas air intake opening and air inlet, vacuum pump, analog to digital converter and aforesaid anti-steam gas cell device; Wherein,
Described solenoid valve optical coupler controller accepts the instruction unpack solenoid valve of central processing controller;
Described vacuum pump optical coupler controller accepts the instruction unpack vacuum pump of central processing controller, and the gas of vacuum pump to source of the gas place extracts, and enters into anti-steam gas cell device through the sample gas air intake opening of solenoid valve;
The concentration of described anti-steam gas cell device to gas corresponding in sample gas is responded to, and the concentration of induction transfers in central processing controller after described analog to digital converter conversion, and sample gas is drained finally by described anti-steam gas cell device.
Accompanying drawing explanation
Figure 1A is the main TV structure schematic diagram of methane anti-steam gas cell device provided by the invention.
Figure 1B is the sectional structure schematic diagram in A-A direction in Figure 1A.
Fig. 2 A is the main TV structure schematic diagram of sulfuretted hydrogen anti-steam gas cell device provided by the invention.
Fig. 2 B is the sectional structure schematic diagram in B-B direction in Fig. 2 A.
Fig. 3 is gas collecting system schematic provided by the invention.
In figure, 1, methane anti-steam air chamber structure; 11, upper chamber; 110, methane chieftain; 12, middle air chamber; 13, lower chamber; 14, condensation chamber; 141, upper condensing chamber; 142, lower condensation chamber; 15, flame proof sheet; 16, filter; 17, air nozzle; 21, central processing controller; 22, solenoid valve optical coupler controller; 23, vacuum pump optical coupler controller; 24, solenoid valve; 241, sample gas air intake opening; 242, air inlet; 25, vacuum pump; 26, analog to digital converter; 1', sulfuretted hydrogen anti-steam air chamber structure; 10', sulfuretted hydrogen anti-steam air chamber structure gas outlet; 110', sulfuretted hydrogen chieftain.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
In describing the invention, it will be appreciated that, term " longitudinal direction ", " radial direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
The present invention discloses a kind of anti-steam gas cell device, comprise at least one cover for responding to the air chamber structure of corresponding gas concentration in sample gas, this air chamber structure comprises upper chamber, middle air chamber and lower chamber, gas chieftain is placed with in described upper chamber, condensation chamber is formed between described middle air chamber and lower chamber, this condensation chamber comprises upper condensing chamber and lower condensation chamber, flame proof sheet is provided with between described upper condensing chamber and gas chieftain, between described upper condensing chamber and lower condensation chamber, be provided with filter, and be provided with air nozzle in the bottom of described lower condensation chamber.
In anti-steam gas cell device provided by the invention, have additional condensation chamber, this condensation chamber whole condensation separation can fall the steam in sample gas, and under gravity, condensed condensate water flows into sampled point automatically by draft tube; And filter is provided with between upper condensing chamber and lower condensation chamber, this filter can stop the impurity particle in sample gas; Simultaneously, flame proof sheet is provided with between upper condensing chamber and gas chieftain, this flame proof sheet only allow gas molecule through, steam is blocked in condensation chamber again, thus can solve the problem correctly responding to gas concentration in sample gas owing to affecting optical sensor containing steam well, enhance the serviceable life of optical sensor simultaneously.
As specific embodiment, please refer to shown in Figure 1A, Figure 1B, Fig. 2 A and Fig. 2 B, anti-steam gas cell device disclosed by the invention comprises methane air chamber and sulfuretted hydrogen air chamber two overlaps air chamber structure, and this two covers air chamber structure is connected in series, its anti-steam principle is identical, is now described with methane gas cell structure.Particularly, methane anti-steam air chamber structure 1 comprises upper chamber 11, middle air chamber 12 and lower chamber 13, methane chieftain 110 is placed with in described upper chamber 11, this methane chieftain 110 is in the top of air chamber structure, condensation chamber 14 is formed between described middle air chamber 12 and lower chamber 13, this condensation chamber comprises upper condensing chamber 141 and lower condensation chamber 142, flame proof sheet 15 is provided with between described upper condensing chamber 141 and methane chieftain 110, filter 16 is provided with between described upper condensing chamber 141 and lower condensation chamber 142, and be provided with air nozzle 17 in the bottom of described lower condensation chamber 142, this air nozzle 17 is for sample gas turnover and the discharge of condensate water.Meanwhile, described filter 16 for the impurity particle in barrier gas, described flame proof sheet 15 for only gas molecule through, steam is blocked in condensation chamber 14 again.
The principle of work of described methane anti-steam air chamber structure is: when sample gas enters lower condensation chamber 142 retention period through air nozzle 17, run into condensation locular wall, self-refrigeration becomes water droplet, and is discharged by draft tube bottom condensation locular wall is slipped under gravity; Then, sample gas enters upper condensing chamber 141 after stopping to fall dust particale by filter 16, under identical action principle, steam in sample gas is again through the stop of condensation and flame proof sheet 15, finally enter the induction that methane chieftain 110 carries out sample gas concentration, detect the concentration of methane gas.And the structure of sulfuretted hydrogen anti-steam air chamber is identical with methane anti-steam air chamber with principle of work, do not repeat them here.
As preferred embodiment, described air chamber structure adopts 304 stainless steels to be prepared from, this stainless steel be suitable for gathering be corrosive, the gas of dust pollution thing, gas concentration change can not be affected because of material and rust corrosion, there is some strength simultaneously, easy processing, and this material has good condensation to the gas containing steam.
As preferred embodiment, the material of described filter 16 is stainless steel, thus can by the dust in sample gas, liquid obscures outside, and this stainless steel is that the compacting of multilayer stainless steel wire forms, and sample gas can be allowed to enter methane chieftain smoothly and respond to its concentration.
As preferred embodiment, described flame proof sheet 15 be only allow gas molecule through micron order flame proof sheet, the feature of this micron order flame proof sheet is that intensity is high, porosity is high, air flow method is even, is easy to machine-shaping, high temperature resistant, corrosion-resistant, high precision, well can carry out gas-liquid separation.
Please refer to shown in Fig. 3, the present invention also discloses a kind of gas collecting system, comprises central processing controller 21, solenoid valve optical coupler controller 22, vacuum pump optical coupler controller 23, the solenoid valve 24 with sample gas air intake opening 241 and air inlet 242, vacuum pump 25, analog to digital converter 26 and aforesaid anti-steam gas cell device; Wherein,
Described solenoid valve optical coupler controller 22 accepts the instruction unpack solenoid valve 24 of central processing controller 21;
Described vacuum pump optical coupler controller 23 accepts the instruction unpack vacuum pump 25 of central processing controller 21, and the gas in vacuum pump 25 pairs of source of the gas places extracts, and enters into anti-steam gas cell device through the sample gas air intake opening 241 of solenoid valve 24;
The concentration of described anti-steam gas cell device to gas corresponding in sample gas is responded to, and the concentration of induction transfers in central processing controller 21 after described analog to digital converter 26 is changed, and sample gas is drained finally by described anti-steam gas cell device.
In order to understand gas collecting system disclosed by the invention better, below the anti-steam gas cell device overlapping air chamber structure to comprise methane air chamber and sulfuretted hydrogen air chamber two being described, specifically please refer to shown in Fig. 3:
Gas collecting opening initialization, central processing controller 21 starts diagnosis and configures each components and parts situation, and is arranged to by microprocessor controller 21 sample to the gas of source of the gas place as sewer/septic tank every 15 minutes (this time interval also can be configured as required).First, central processing controller 21 issues instructions to the vacuum pump optical coupler controller 23 controlling vacuum pump 25, and vacuum pump optical coupler controller 23 controls vacuum pump 25 and opens, simultaneously, solenoid valve optical coupler controller 22 accepts the instruction unpack solenoid valve 24 of central processing controller 21, vacuum pump 25 starts to extract the gas of septic tank/sewer, sample gas air intake opening 241 through solenoid valve 24 enters into methane gas cell structure 1, by carrying out condensation inside this air chamber by after steam separation, sample gas is delivered to methane gas chieftain 110 and responds to, to detect concentration of methane gas contained in sample gas, this sample gas enters in sulfuretted hydrogen anti-steam air chamber structure 1' simultaneously, again be separated through steam, sample gas is delivered to hydrogen sulfide gas chieftain 110' and responds to, to detect sulfureted hydrogen gas concentration contained in sample gas, sample gas is drained finally by sulfuretted hydrogen anti-steam air chamber structure gas outlet 10'.The concentration of methane gas of methane gas chieftain induction and the sulfureted hydrogen gas concentration of hydrogen sulfide gas chieftain induction all carry out analog to digital conversion by analog to digital converter 26, and the gas concentration value after conversion are transferred in central processing controller 21.After 5 minutes sample gas of setting terminate, central processing controller 21 issues instructions to the solenoid valve optical coupler controller 22 of Controlling solenoid valve 24, to open solenoid valve 24, solenoid valve 24 is switched to air inlet 242 from gas inlet 241, vacuum pump 25 starts the cleaning that extracting air carries out the residual gas remained in air chamber and residuals 5 minutes, and then close vacuum pump 25, solenoid valve 24 still remains on blowing air state, until the arrival of sample gas circulation next time, then repeat the course of work above.
Adopt anti-steam gas cell device provided by the invention and gas collecting system, can solve well in sample gas owing to affecting containing steam the problem that gas concentration correctly responded to by optical sensor.
These are only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing instructions of the present invention and accompanying drawing content to do, is directly or indirectly used in the technical field that other are relevant, all in like manner within scope of patent protection of the present invention.
Claims (6)
1. an anti-steam gas cell device, it is characterized in that, comprise at least one cover for responding to the air chamber structure of corresponding gas concentration in sample gas, this air chamber structure comprises upper chamber, middle air chamber and lower chamber, gas chieftain is placed with in described upper chamber, condensation chamber is formed between described middle air chamber and lower chamber, this condensation chamber comprises upper condensing chamber and lower condensation chamber, flame proof sheet is provided with between described upper condensing chamber and gas chieftain, between described upper condensing chamber and lower condensation chamber, be provided with filter, and be provided with air nozzle in the bottom of described lower condensation chamber.
2. anti-steam gas cell device according to claim 1, is characterized in that, described anti-steam gas cell device comprises methane air chamber and sulfuretted hydrogen air chamber two overlaps air chamber structure, and this two covers air chamber structure is connected in series.
3. anti-steam gas cell device according to claim 1 and 2, is characterized in that, described air chamber structure adopts 304 stainless steels to be prepared from.
4. anti-steam gas cell device according to claim 1 and 2, is characterized in that, the material of described filter is stainless steel.
5. anti-steam gas cell device according to claim 1 and 2, is characterized in that, described flame proof sheet be only allow gas molecule through micron order flame proof sheet.
6. a gas collecting system, it is characterized in that, comprise central processing controller, solenoid valve optical coupler controller, vacuum pump optical coupler controller, the solenoid valve with sample gas air intake opening and air inlet, vacuum pump, analog to digital converter and the anti-steam gas cell device according to any one of claim 1-5; Wherein,
Described solenoid valve optical coupler controller accepts the instruction unpack solenoid valve of central processing controller;
Described vacuum pump optical coupler controller accepts the instruction unpack vacuum pump of central processing controller, and the gas of vacuum pump to source of the gas place extracts, and enters into anti-steam gas cell device through the sample gas air intake opening of solenoid valve;
The concentration of described anti-steam gas cell device to gas corresponding in sample gas is responded to, and the concentration of induction transfers in central processing controller after described analog to digital converter conversion, and sample gas is drained finally by described anti-steam gas cell device.
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| CN201510831703.3A CN105352767A (en) | 2015-11-25 | 2015-11-25 | Moisture-prevention gas chamber device and gas collection system thereof |
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| CN201510831703.3A CN105352767A (en) | 2015-11-25 | 2015-11-25 | Moisture-prevention gas chamber device and gas collection system thereof |
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| GB2344653A (en) * | 1998-11-26 | 2000-06-14 | Markes International Limited | Analysing components of gases or vapours |
| DE10232849A1 (en) * | 2002-07-19 | 2004-02-12 | Abb Patent Gmbh | Gas analyzer, e.g. for field detection of odorless, invisible toxic agents and pollutants, has self-contained sampling and detector, and sample is transferred to detector under action of force field |
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