CN109932490A - Gas pretreatment device with reverse pumping function and gas detection device - Google Patents
Gas pretreatment device with reverse pumping function and gas detection device Download PDFInfo
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- CN109932490A CN109932490A CN201910214426.XA CN201910214426A CN109932490A CN 109932490 A CN109932490 A CN 109932490A CN 201910214426 A CN201910214426 A CN 201910214426A CN 109932490 A CN109932490 A CN 109932490A
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- 238000001514 detection method Methods 0.000 title abstract description 18
- 238000005086 pumping Methods 0.000 title abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 12
- 238000010790 dilution Methods 0.000 claims description 31
- 239000012895 dilution Substances 0.000 claims description 31
- 238000012360 testing method Methods 0.000 abstract description 14
- 239000007789 gas Substances 0.000 description 55
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 2
- 230000004397 blinking Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The invention provides a gas pretreatment device with a reverse pumping function and a gas detection device, comprising: the device comprises an oil-water separator, a particle filter, a three-way valve I, a three-way valve II, a three-way joint I, an air pump, a flowmeter I, a pressure gauge, a two-way valve, a switch I, a switch II, a switch V and a switch VI; the oil-water separator, the particle filter, the three-way valve I, the air pump, the three-way valve II, the three-way joint I, the flowmeter I, the pressure gauge and the two-way valve are sequentially connected to form a passage, and the switch I, the switch II, the switch V and the switch VI respectively control the three-way valve I, the three-way valve II, the air pump and the two-way valve. The invention provides stable flowing, constant temperature and pressure, dry and clean gas for the following detection equipment, greatly improves the reliability of the gas test result and prolongs the service life of the gas detection equipment.
Description
Technical field
The present invention relates to field of gas detection more particularly to a kind of gas pretreatment devices and gas with back suction function
Detection device.
Background technique
For the gas detection equipment applied to all trades and professions, such as testing vehicle exhaust by infrared spectrum technology
The detection device of ingredient, in the detection, the presence of vapor can generate certain influence to the precision of test.Additionally due to water steams
The presence of the particulate matters such as soot and dust in gas and vehicle exhaust all can be polluted and be damaged to various detection devices, be reduced
The service life of detection device.In addition to this, the unstability of the numerical value such as pressure of gas flow, gas temperature and gas,
Also certain error has been brought to test result.
Summary of the invention
In view of the above-mentioned problems, the design is intended to research and develop a kind of gas pretreatment device and gas detection with back suction function
Device.
The present invention provides a kind of gas pretreatment device and gas-detecting device with back suction function, comprising: grease point
From device, particle filter, triple valve I, triple valve II, three-way connection I, aspiration pump, flowmeter I, pressure gauge, two-port valve, switch
I, switch II, switch V and switch VI；
The inlet end of the oil water separator is connected with atmosphere, and the outlet side of the oil water separator passes through connecting tube and institute
The inlet end for stating particle filter is connected, and the A mouth of the triple valve I passes through the outlet side phase of connecting tube and the particle filter
Even, the inlet end of the aspiration pump is connected by connecting tube with the B mouth of the triple valve I, and the A mouth of the triple valve II passes through company
Adapter tube is connected with the outlet side of the aspiration pump, and the A mouth of the three-way connection I passes through the B mouth of connecting tube and the triple valve II
It is connected, the C mouth of the three-way connection I is connected by connecting tube with the C mouth of the triple valve I；The inlet end of the flowmeter I is logical
Connecting tube is crossed to be connected with the B mouth of the three-way connection I；The inlet end of the pressure gauge is by connecting tube with the flowmeter I's
Outlet side is connected；The inlet end of the two-port valve is connected by connecting tube with the outlet side of the pressure gauge；
The switch I and switch II controls the triple valve I and triple valve II respectively；The switch V and institute
It states switch VI and controls the aspiration pump and the two-port valve respectively.
Further, further includes: further include: Dilution air pump, flowmeter II, vane type mixed instrument and switch VII；
The Dilution air pump and the flowmeter II count to form Article 2 circuit, the outlet side of the Dilution air pump
It is connected by connecting tube with the inlet end of the flowmeter II；The outlet side of the flowmeter I and the flowmeter II pass through company
Adapter tube is connected with the inlet end of the vane type mixed instrument；The inlet end of the pressure gauge is mixed by connecting tube and the vane type
The outlet side for closing instrument is connected；The switch VII controls the dilution pumps.
Further, further includes: triple valve III, triple valve IV, three-way connection II, switch III and switch IV；
The A mouth of the triple valve III is connected with atmosphere, and the B mouth of the triple valve III is dilute by connecting tube and the air
The inlet end for releasing pump is connected, and the A mouth of the triple valve IV is connected by connecting tube with the outlet side that the Dilution air pumps, described
The B mouth of triple valve IV is connected by connecting tube with the A mouth of the three-way connection II, and the C mouth of the three-way connection II passes through connection
Pipe is connected with the C mouth of the triple valve III；The inlet end of the Section II flowmeter is by connecting tube with the three-way connection II's
B mouthfuls are connected；The switch III and switch IV is respectively used to control the triple valve III and triple valve IV.
Further, further includes: store the triple valve I, triple valve II, triple valve III, triple valve IV, aspiration pump, sky
Gas dilution pumps, two-port valve, flowmeter I, flowmeter II and pressure gauge cabinet；
Manually control respectively the triple valve I, triple valve II, triple valve III, triple valve IV switch I, switch II, open
It closes III and switch IV and controls aspiration pump, gas dilution pumps, the switch V of two-port valve, switch VI and switch VII respectively and fix
In on the chamber door of the cabinet；
The flowmeter I, flowmeter II and pressure gauge are embedded on the chamber door；
There are four through-holes for the cabinet setting, are respectively used to connect the inlet end of the oil water separator, the triple valve
The C mouth of II and the C mouth of the triple valve IV.
The present invention also provides a kind of gas-detecting device, including the above-mentioned gas pretreatment device with back suction function and
Gas detecting instrument；
The inlet end of the gas detecting instrument is connected with the outlet side of body front end pre-detection device by connecting tube.
The present invention solves the unstability of the numerical value such as the pressure of gas flow, gas temperature and gas, and test
As a result there is the problems such as error.For detection device below provide flowing stabilization, constant temperature and pressure, dry cleansing gas, mention significantly
The reliability of high gas test result and the service life for extending gas detection equipment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to do one simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is one overall structure diagram of the embodiment of the present invention；
Fig. 2 is two overall structure diagram of the embodiment of the present invention；
Fig. 3 is three overall structure diagram of the embodiment of the present invention；
Fig. 4 is five overall structure diagram of the embodiment of the present invention；
Fig. 5 is four overall structure diagram of the embodiment of the present invention.
Wherein 1, oil water separator, 2, particle filter, 3, triple valve I, 31, the A mouth of triple valve I, 32, the B of triple valve I
Mouthful, 33, the C mouth of triple valve I, 4, aspiration pump, 5, triple valve II, 51, the A mouth of triple valve II, 52, the B mouth of triple valve II, 53,
The C mouth of triple valve II, 6, flowmeter I, 7, three-way connection II, 71, the A mouth of three-way connection II, 72, the B mouth of three-way connection II,
73, the C mouth of three-way connection II, 8, pressure gauge, 9, two-port valve, 10, vane type mixed instrument, 11, Dilution air pump, 12, flowmeter
II, 14, triple valve III, 141, the A mouth of triple valve III, 142, the B mouth of triple valve III, 143, the C mouth of triple valve III, 15,
Triple valve IV, 151, the A mouth of triple valve IV, 152, the B mouth of triple valve IV, 153, the C mouth of triple valve IV, 16, three-way connection I,
161, the A mouth of three-way connection I, 162, the B mouth of three-way connection I, 163, the C mouth of three-way connection I, 17, gas detecting instrument, 18, open
Close I, 19, switch II, 20, switch III, 21, switch IV, 22, switch V, 23, switch VI, 24, switch VII.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention provides a kind of gas pretreatment device and gas-detecting device with back suction function, comprising: grease point
From device, particle filter, triple valve I, triple valve II, three-way connection I, aspiration pump, flowmeter I, pressure gauge, two-port valve, switch
I, switch II, switch V and switch VI；
The inlet end of the oil water separator is connected with atmosphere, and the outlet side of the oil water separator passes through connecting tube and institute
The inlet end for stating particle filter is connected, and the A mouth of the triple valve I passes through the outlet side phase of connecting tube and the particle filter
Even, the inlet end of the aspiration pump is connected by connecting tube with the B mouth of the triple valve I, and the A mouth of the triple valve II passes through company
Adapter tube is connected with the outlet side of the aspiration pump, and the A mouth of the three-way connection I passes through the B mouth of connecting tube and the triple valve II
It is connected, the C mouth of the three-way connection I is connected by connecting tube with the C mouth of the triple valve I；The inlet end of the flowmeter I is logical
Connecting tube is crossed to be connected with the B mouth of the three-way connection I；The inlet end of the pressure gauge is by connecting tube with the flowmeter I's
Outlet side is connected；The inlet end of the two-port valve is connected by connecting tube with the outlet side of the pressure gauge；
The switch I and switch II controls the triple valve I and triple valve II respectively；The switch V and institute
It states switch VI and controls the aspiration pump and the two-port valve respectively.
Specifically, as shown in Figure 1, in the present embodiment one, the switch I, switch II, switch V and switch VI are respectively
Before knob I, knob II, button I and button II open complete equipment, for verify entire pipeline whether gas leakage, need to be into before work
The leak detection operation of row pipeline, presses the button I, starts the aspiration pump；The button II is pressed, the two-port valve is closed, makes
Under test gas flows through entire pipeline, observes whether the pressure gauge index remains unchanged, if pressure keeps a certain numerical value constant
It is i.e. it is believed that air tight, if pressure value fluctuation is big, illustrate gas leakage, pressure gauge can blinking red lamp prompt alarm.
It works normally: all devices being powered on, the button I is pressed, opens the aspiration pump；Rotate to the left the knob
The I and knob II is separately turned on the triple valve I and triple valve II, so that under test gas is flowed to B mouthfuls from A mouthfuls, at this point, B
Mouth to A mouthfuls of directions are closed；Under the triple valve I, the aspiration pump and triple valve II effect, the pretreatment of gas to be measured is realized；
The oil water separator is small-sized equipment, the front end in entire circuit is placed in, for carrying out first grease under test gas
The working principle of oil water separator: oily wastewater is sent into oil water separator by sewage pump, passes through divergent nozzle by lock out operation
Afterwards, bulky grain oil droplet be on float at the top of left gathering room；Sewage containing small oil droplet enters the corrugated plating coalescer of lower part, herein
Polymeric part oil droplet is at biggish oil droplet to right gathering room；Sewage containing more short grained oil droplet is by fine cleaner, in water of going out
Impurity sequentially enters fibrous polymer device, so that fine oil droplets is aggregated into biggish oil droplet and is separated from water；After separation, clean water passes through
Outlet excludes, and sump oil passes through the sump oil that solenoid valve is excluded automatically, and separated in fibrous polymer device in the gathering room of left and right, then
It is excluded by hand-operated valve；The sump oil of exclusion finally by particle filter further progress filter, finally will filter out come to
It surveys gas to enter by the A mouth of the triple valve I, be discharged from the B mouth of the triple valve I, flowed through described in the aspiration pump entrance
The A mouth of triple valve II, then it is discharged to by the B mouth of the triple valve II A mouth of the three-way connection I, by the three-way connection I's
B mouthfuls are discharged to the flowmeter I, the pressure gauge and the two-port valve；The flowmeter I is used to detect the stream of under test gas
Amount；
Back suction process: the knob I and knob II need to be rotated to the right, the triple valve I and described three is separately turned on
Port valve II makes under test gas flow to A mouthfuls from B mouthfuls, at this point, A mouthfuls to B mouthfuls directions are closed；The button I is pressed, the pumping is started
Air pump；According to the working principle of triple valve, during back suction, the A mouth of the B mouth of the triple valve II to the three-way connection I is not
Logical, the A mouth front end pipeline of the triple valve I is obstructed；At this point, the flowmeter I after the B mouth of the three-way connection I, described
Last time in pressure gauge pre-processes remaining gas flow are as follows: and B mouth → three-way connection I C mouth of the three-way connection I →
C mouth → triple valve I B mouth → aspiration pump inlet end → aspiration pump outlet side of the triple valve I → described
A mouth → triple valve II C mouth of triple valve II, is discharged in atmosphere by the C mouth of the triple valve II；To prevent the last time
In the gas residue equipment and pipeline of measurement, error is caused to measurement next time, therefore will be remained in pipeline after preceding one-shot measurement
Portion gas back suction come out, to improve the success rate of detection.
Further, further includes: Dilution air pump, flowmeter II, vane type mixed instrument and switch VII；
The Dilution air pump and the flowmeter II count to form Article 2 circuit, the outlet side of the Dilution air pump
It is connected by connecting tube with the inlet end of the flowmeter II；The outlet side of the flowmeter I and the flowmeter II pass through company
Adapter tube is connected with the inlet end of the vane type mixed instrument；The inlet end of the pressure gauge is mixed by connecting tube and the vane type
The outlet side for closing instrument is connected；The switch VII controls the dilution pumps.
Specifically, as shown in Fig. 2, the switch VII is button III, while being pressed shown in control in the present embodiment two
The shown button III of Dilution air pump starts shown Dilution air pump, and shown Dilution air is pumped outside air suction line,
The under test gas excessively high for diluted concentration, the air of sucking flow through shown flowmeter II, and shown flowmeter II is for detecting sky
The flow of gas flows through shown flowmeter II and mixes with the under test gas for flowing through shown flowmeter I, and two kinds of gases simultaneously flow through institute
State vane type mixed instrument；The mixing bunker of the vane type mixed instrument is the different size by series installation in hollow pipe
What mixed cell carried out, it is left-handed when making two kinds of gas due to the effect of mixed cell, when and dextrorotation, constantly change flowing side
To not only pushing center liquid stream to periphery, but also push peripheral fluid to center, to cause good radial mixed effect.
At the same time, the turning effort of two kinds of gas itself can also occur on the interface of adjacent component junction, this perfect diameter
To circulation immixture, achieve the purpose that two kinds of gases uniformly mixed.
Further, further includes: triple valve III, triple valve IV, three-way connection II, switch III and switch IV；
The A mouth of the triple valve III is connected with atmosphere, and the B mouth of the triple valve III is dilute by connecting tube and the air
The inlet end for releasing pump is connected, and the A mouth of the triple valve IV is connected by connecting tube with the outlet side that the Dilution air pumps, described
The B mouth of triple valve IV is connected by connecting tube with the A mouth of the three-way connection II, and the C mouth of the three-way connection II passes through connection
Pipe is connected with the C mouth of the triple valve III；The inlet end of the Section II flowmeter is by connecting tube with the three-way connection II's
B mouthfuls are connected；The switch III and switch IV is respectively used to control the triple valve III and triple valve IV.
Specifically, as shown in figure 3, the switch III and switch IV are respectively knob III and rotation in the present embodiment three
Button IV, the inlet end of the Dilution air pump and outlet side pass through connecting tube respectively and are connected with the triple valve III and triple valve
IV；
When normal work: pressing the button III, after starting shown Dilution air pump, while rotating to the left the knob
III and knob IV, air are entered by the A mouth of the triple valve III, are discharged from the B mouth of the triple valve III, are flowed through described
Dilution air pump enters the A mouth of the triple valve IV, then the A of the three-way connection II is discharged to by the B mouth of the triple valve IV
Mouthful, and the flowmeter II is discharged to from the B mouth of the three-way connection II；
Back suction process: the knob III and knob IV need to be rotated to the right, the triple valve III and institute are separately turned on
Triple valve IV is stated, under test gas is made to flow to A mouthfuls from B mouthfuls, at this point, A mouthfuls to B mouthfuls directions are closed；The button I is pressed, institute is started
State aspiration pump；According to the working principle of triple valve, during back suction, the A of the B mouth of the triple valve IV to the three-way connection II
Mouth is obstructed；At this point, the last time after the B mouth of the three-way connection II in equipment pre-processes remaining gas flow are as follows: described three
B mouth → three-way connection II C mouth → triple valve III C mouth → triple valve III B mouth of pass joint II →
The Dilution air pump inlet end → Dilution air pumps outlet side → triple valve IV A mouth → triple valve IV
It C mouthfuls, is discharged in atmosphere by the C mouth of the triple valve IV；
Further, further includes: store the triple valve I, triple valve II, triple valve III, triple valve IV, aspiration pump, sky
Gas dilution pumps, two-port valve, flowmeter I, flowmeter II and pressure gauge cabinet；
The triple valve I, triple valve II, triple valve III, the knob I of triple valve IV, knob II, rotation are manually controlled respectively
Button III and knob IV and control aspiration pump respectively, gas dilution pumps, the button I of two-port valve, button II, button III are both secured to
On the chamber door of the cabinet；
The flowmeter I, flowmeter II and pressure gauge are embedded on the chamber door；
There are four through-holes for the cabinet setting, are respectively used to connect the inlet end of the oil water separator, the triple valve
The C mouth of II and the C mouth of the triple valve IV.
Specifically, as shown in figure 5, all devices and route are all set in the cabinet in the present embodiment four, in order to
Facilitate each equipment of control, the knob for being respectively used to control and button are fixed by bolts on the chamber door；It is simultaneously
Convenient reading data, the dial plate of meters equipment is embedded on the chamber door；The cabinet is also set up there are four through-hole, institute
Through-hole is stated to be respectively used to connect the C of the inlet end of the oil water separator, the C mouth of the triple valve II and the triple valve IV
Mouthful；Keep equipment control and reading data more convenient.
The present invention also provides a kind of gas-detecting device, including the above-mentioned gas pretreatment device with back suction function and
Gas detecting instrument；
The inlet end of the gas detecting instrument and the gas pretreatment device and gas detection with back suction function fill
The outlet side set is connected by connecting tube.
Specifically, the gas detecting instrument is external equipment as shown in figure 4, in the present embodiment five, the case can be passed through
Through-hole on body is connected with the intracorporal two-port valve of the case, and then the gas for flowing through the two-port valve is detected.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (5)
1. a kind of gas pretreatment device and gas-detecting device with back suction function characterized by comprising water-oil separating
Device, particle filter, triple valve I, triple valve II, three-way connection I, aspiration pump, flowmeter I, pressure gauge, two-port valve, switch I,
Switch II, switch V and switch VI；
The inlet end of the oil water separator is connected with atmosphere, and the outlet side of the oil water separator passes through connecting tube and described
The inlet end of grain filter is connected, and the A mouth of the triple valve I is connected by connecting tube with the outlet side of the particle filter,
The inlet end of the aspiration pump is connected by connecting tube with the B mouth of the triple valve I, and the A mouth of the triple valve II passes through connection
Pipe is connected with the outlet side of the aspiration pump, and the A mouth of the three-way connection I passes through the B mouth phase of connecting tube and the triple valve II
Even, the C mouth of the three-way connection I is connected by connecting tube with the C mouth of the triple valve I；The inlet end of the flowmeter I passes through
Connecting tube is connected with the B mouth of the three-way connection I；The inlet end of the pressure gauge is gone out by connecting tube and the flowmeter I's
Gas end is connected；The inlet end of the two-port valve is connected by connecting tube with the outlet side of the pressure gauge；
The switch I and switch II controls the triple valve I and triple valve II respectively；It the switch V and described opens
It closes VI and controls the aspiration pump and the two-port valve respectively.
2. the gas pretreatment device and gas-detecting device according to claim 1 with back suction function, feature exist
In, further includes: Dilution air pump, flowmeter II, vane type mixed instrument and switch VII；
The Dilution air pump and the flowmeter II count to form Article 2 circuit, and the outlet side of the Dilution air pump passes through
Connecting tube is connected with the inlet end of the flowmeter II；The outlet side of the flowmeter I and the flowmeter II pass through connecting tube
It is connected with the inlet end of the vane type mixed instrument；The inlet end of the pressure gauge passes through connecting tube and the vane type mixed instrument
Outlet side be connected；The switch VII controls the dilution pumps.
3. the gas pretreatment device and gas-detecting device according to claim 2 with back suction function, feature exist
In, further includes: triple valve III, triple valve IV, three-way connection II, switch III and switch IV；
The A mouth of the triple valve III is connected with atmosphere, and the B mouth of the triple valve III is pumped by connecting tube and the Dilution air
Inlet end be connected, A mouth of the triple valve IV passes through connecting tube and is connected with the outlet side that the Dilution air pumps, the threeway
The B mouth of valve IV is connected by connecting tube with A mouth of the three-way connection II, the C mouth of the three-way connection II pass through connecting tube and
The C mouth of the triple valve III is connected；The inlet end of the Section II flowmeter passes through the B mouth of connecting tube and the three-way connection II
It is connected；The switch III and switch IV is respectively used to control the triple valve III and triple valve IV.
4. the gas pretreatment device and gas-detecting device of back suction function are had to any one described in 3 according to claim 1,
It is characterized by further comprising: storing the triple valve I, triple valve II, triple valve III, triple valve IV, aspiration pump, Dilution air
Pump, two-port valve, flowmeter I, flowmeter II and pressure gauge cabinet；
The triple valve I, triple valve II, triple valve III, the switch I of triple valve IV, switch II, switch III are manually controlled respectively
And switch IV and aspiration pump is controlled respectively, described in gas dilution pumps, the switch V of two-port valve, switch VI and switch VII are both secured to
On the chamber door of cabinet；
The flowmeter I, flowmeter II and pressure gauge are embedded on the chamber door；
There are four through-holes for the cabinet setting, are respectively used to connect the C of the inlet end of the oil water separator, the triple valve II
The C mouth of mouth and the triple valve IV.
5. a kind of gas-detecting device, which is characterized in that including any one described in Claims 1-4 with back suction function
Gas pretreatment device and gas-detecting device and gas detecting instrument；
The inlet end of the gas detecting instrument and the gas pretreatment device and gas-detecting device with back suction function
Outlet side is connected by connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214426.XA CN109932490B (en) | 2019-03-20 | 2019-03-20 | Gas pretreatment device with back-pumping function and gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214426.XA CN109932490B (en) | 2019-03-20 | 2019-03-20 | Gas pretreatment device with back-pumping function and gas detection device |
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| Publication Number | Publication Date |
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| CN109932490A true CN109932490A (en) | 2019-06-25 |
| CN109932490B CN109932490B (en) | 2024-02-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092691A (en) * | 2021-05-06 | 2021-07-09 | 上海烟草集团有限责任公司 | Device for detecting moisture content in gas |
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