CN108414691A - A kind of sample gas stable-pressure device - Google Patents
A kind of sample gas stable-pressure device Download PDFInfo
- Publication number
- CN108414691A CN108414691A CN201810184990.7A CN201810184990A CN108414691A CN 108414691 A CN108414691 A CN 108414691A CN 201810184990 A CN201810184990 A CN 201810184990A CN 108414691 A CN108414691 A CN 108414691A
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- China
- Prior art keywords
- outer barrel
- sample gas
- gas
- pressure device
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 26
- 230000008569 process Effects 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000006837 decompression Effects 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000000087 stabilizing effect Effects 0.000 abstract description 5
- 238000004868 gas analysis Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- -1 dirt Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
- G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure or temperature
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of sample gas stable-pressure devices.Sample gas stable-pressure device provided by the invention includes outer barrel, inner cylinder, liquid level gauge, overflow pipe, filler, discharge outlet, drain, process gas inlets, the outlet of sample gas, it is characterized in that, process gas inlets and the outlet of sample gas are located at the top of inner cylinder, liquid level gauge is mounted on outer barrel, the overflow pipe of outer barrel side installation, filler and drain are located at the top of outer barrel, and discharge outlet is located at outer barrel bottom.Sample gas stable-pressure device provided by the invention has voltage stabilizing decompression function, has the function of pressure adjustable, can stablize the normal measurement of in-line analyzer, extend the service life of in-line analyzer.
Description
Technical field
The present invention relates to test fields of measurement more particularly to it is a kind of suitable for chemical fertilizer factory, chemical plant production process detect
The sample gas stable-pressure device that on-line gas analysis instrument uses.
Background technology
The change indicator of links raw gas concentration is the necessary index of technologist's operation during chemical fertilizer production,
Stablize fortune as the O2 contents in semiwater gas, CO, CO2, H2 equal size in synthetic raw gas are related to each potential job safety
Row.It detects such gas componant and is all made of on-line gas analysis instrument, such as infrared ray gas analyzer, gas chromatographicanalyzer,
The analysis sample pretreatment of on-line gas analysis instrument is to take out analyzed sample from production process to pass through certain pretreatment (such as
Cooling, heating, vaporization, voltage stabilizing, dedusting, drying etc.), reach mistake of the analytical instrument to feeding detector after the requirement of sample state
Journey.
It is to be completed by the decompression of a few road gauge valves into analytical instrument gas pressure and flow control.In actual use process
In, due to process gas pressure etc., there is 1-30MPa, the gauge valve Decompression Controlling that the configuration of analytical instrument producer is used only is frequent
It causes stress that control is unstable, enters in the sample gas of analyzer that band liquid, band dirt are serious sometimes, cause that analyzer is contaminated, corrosion,
Seriously affect normal measurement and the service life of in-line analyzer, this sample gas stable-pressure device effective solution problems.
Invention content
1, the invention technical problem to be solved：
The present invention is intended to provide a kind of sample gas stable-pressure device, to be carried out at voltage stabilizing to the analysis sample of on-line gas analysis instrument
Reason.
2, the technical solution of its technical problem use is solved：
A kind of sample gas stable-pressure device, including outer barrel, inner cylinder, liquid level gauge, overflow pipe, filler, discharge outlet, drain, work
Skill gas feed, the outlet of sample gas, which is characterized in that process gas inlets and the outlet of sample gas are located at the top of inner cylinder, liquid level gauge installation
On outer barrel, the overflow pipe of outer barrel side installation, filler and drain are located at the top of outer barrel, and discharge outlet is located at outer barrel bottom.
The liquid level gauge installed on outer barrel can intuitively reflect the height of injection water in outer barrel, by adjusting water in outer barrel
The height of position controls the pressure into analytical instrument sample gas.
The overflow pipe of outer barrel side installation is U-shaped bend pipe, and it is excessively high to be effectively prevented from water level, when water level is higher than on water level
Automatic overflow is understood in limited time.
3, it has the advantage that compared with prior art：
The present invention can be used for chemical fertilizer factory, chemical plant production process detection on-line gas analysis instrument pretreatment sample gas it is steady
Pressure device has voltage stabilizing decompression function, has the function of pressure adjustable, can stablize the normal measurement of in-line analyzer, extends online
The service life of analyzer.
Description of the drawings
Fig. 1 is the structure chart of sample gas stable-pressure device provided by the invention.
Reference sign：
Specific implementation mode
Sample gas stable-pressure device provided by the invention is as shown in Figure 1, including outer barrel 8, inner cylinder 2, liquid level gauge 6, overflow pipe 7, add
The mouth of a river 5, discharge outlet 9, drain 1, process gas inlets 3, sample gas outlet 4, process gas inlets and the outlet of sample gas are located at inner cylinder
Top, liquid level gauge are mounted on outer barrel, and the overflow pipe of outer barrel side installation, filler and drain are located at the top of outer barrel, draining
Mouth is located at outer barrel bottom.
In the present embodiment, sample gas stable-pressure device specifically uses following parameter.Outer barrel and inner cylinder are by the way of welding, outer barrel
1200 millimeters high, inner cylinder mode of under shed to be closed, inner cylinder is diameter 89*4.5,800 millimeters long, is vertically drawn at the top of inner cylinder
Go out the gauge pipe of two 14 millimeters of diameters, respectively technique air inlet and the outlet of sample gas.Drain is located at the top of outer barrel, a diameter of
The gauge pipe of diameter 14*2, a height of 600 millimeters of liquid level gauge, lower part and inner cylinder lower part, overflow pipe lower part are drawn on the pipe of 89*4.5
It flushes, the pipe U-shaped height of overflow is 600 millimeters, and 25*2 millimeters of diameter, outer barrel upper side is equipped with filler, and bottom sides are equipped with
Discharge outlet.
In the present embodiment, the application method of sample gas stable-pressure device is：
(1) technique air inlet is connected to process gas, sample gas exports the pretreatment unit for connecing in-line analyzer, and drain connects
It is introduced on the emptying manifold of analytical instrument after gauge valve.Water is injected into outer barrel according to the needs of analytical instrument gas pressure, is noted
The height for entering water necessarily is greater than liquid level gauge lower limit, the i.e. lower junction of liquid level gauge and outer barrel, due to junction, inner cylinder under liquid level gauge
Downside, overflow port are in same level, and (figure lower limit line), i.e., water level necessarily is greater than the level.Water level highest must not exceed liquid
The position meter upper limit, the i.e. upper junction (upper limit line in figure) of liquid level gauge and outer barrel.Junction and overflow pipe U-tube are on liquid level gauge
Sustained height, when water level is higher than the liquid level gauge upper limit, the water in outer barrel is naturally drained along overflow pipe.The height of water level determine into
Enter the air pressure of analytical instrument.
The pressure P=pgh that water column generates
The density of injection water, 1000kg/m3 in p- outer barrels
G- acceleration of gravity, 9.8N/kg
The height of injection water, is calculated with full liquid level 0.6m in h- outer barrels
P=ρ gh
=1000*9.8*0.6
=5.88KPa
It is adjustable that 0-5.88KPa ranges can be realized.
(2) after process gas enters inner cylinder, analytical instrument is entered by the outlet of sample gas, when pressure is more than the pressure generated by water level
When power (calculates) 5.88KPa with full-water level, water of a part of gas through inner cylinder lower part enters in outer barrel water, after generating bubble, into
Enter outer barrel top, put into air by drain, due to the pipe that inner cylinder is diameter 89*4.5, is equivalent to a small surge tank,
Continuous supply analysis instrument can be achieved and be tested gas.
(3) when carrying water and impurity in process gas, when gas enters inner cylinder, water and impurity meeting nature drop to outer barrel
Water in, analytical instrument will not be entered with gas.
(4) when in process gas because open, stop or technological operation it is improper with a large amount of water or bad liquid medium when, meeting
Naturally enter outer barrel, when water or liquid medium height are more than at the top of the pipe U-shaped crook of overflow, can be naturally drained with overflow pipe, no
It can cause full liquid level and liquid is made to enter in analytical instrument.
The inner cylinder of the sample gas stable-pressure device is equivalent to a pressure surge tank, and process gas can be made appropriate slow here
The continuous gas supply to analytical instrument is realized in punching.The inner cylinder of the sample gas stable-pressure device has the function of water removal, dedusting, removes impurity.Work as work
When skill gas is with water, dirt, impurity, it can naturally fall in outer barrel, will not be brought into objectionable in analytical instrument.The sample gas is steady
Pressure device can suitably increase process gas pressure, improve gas flow rate, and it is stagnant to reduce measurement caused by due to process gas flow rates are slow
Afterwards.The drain setting on the sample gas stable-pressure device top can avoid process gas in outer barrel and build the pressure and run liquid, effectively prevent from filling
Set the loss of water.The sample gas stable-pressure device has voltage stabilizing decompression function, when process gas pressure is higher than the pressure that water column generates,
Gas can be discharged through the water surface by drain, will not cause superpressure.When process gas pressure is less than the pressure that water column generates, normally
It is exported from sample gas into analytical instrument and gives processing.The sample gas stable-pressure device is easy to use, practicality easy to operate.
In the present embodiment, sample gas stable-pressure device using when should be noted：
The water injected in outer barrel will periodically be replaced according to gaseous impurity situation during use, and principle is every 2 months
Once.
Daily to pay attention to water level conditions in observation liquid level gauge, when water level decreasing, is replenished in time, and process bands water causes water when serious
When position steeply rises, should water level be down to normal position in time.
Gas emission behaviour shows that process gas pressure is excessively high, can fit if gas discharge is larger in daily observation drain
It is turned down when by process gas root valve, prevents the waste of process gas as far as possible, ensure emptying amount in small amount.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of protection of the invention god.
Claims (3)
1. a kind of sample gas stable-pressure device, including outer barrel, inner cylinder, liquid level gauge, overflow pipe, filler, discharge outlet, drain, technique
Gas feed, the outlet of sample gas, which is characterized in that process gas inlets and the outlet of sample gas are located at the top of inner cylinder, and liquid level gauge is mounted on
On outer barrel, outer barrel side is equipped with overflow pipe, and filler and drain are located at the top of outer barrel, and discharge outlet is located at outer barrel bottom.
2. sample gas stable-pressure device as described in claim 1, which is characterized in that the liquid level gauge installed on outer barrel can be intuitively anti-
The height for mirroring injection water in outer barrel, the pressure into analytical instrument sample gas is controlled by adjusting the height of water level in outer barrel.
3. sample gas stable-pressure device as described in claim 1, which is characterized in that the overflow pipe of outer barrel side installation is U-shaped bend pipe,
It is excessively high that water level can be effectively prevented from, it can automatic overflow when water level is higher than the water level upper limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810184990.7A CN108414691A (en) | 2018-02-11 | 2018-02-11 | A kind of sample gas stable-pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810184990.7A CN108414691A (en) | 2018-02-11 | 2018-02-11 | A kind of sample gas stable-pressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108414691A true CN108414691A (en) | 2018-08-17 |
Family
ID=63130088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810184990.7A Withdrawn CN108414691A (en) | 2018-02-11 | 2018-02-11 | A kind of sample gas stable-pressure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108414691A (en) |
-
2018
- 2018-02-11 CN CN201810184990.7A patent/CN108414691A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180817 |