CN207123425U - A kind of portable sulfur trioxide sampling instrument - Google Patents
A kind of portable sulfur trioxide sampling instrument Download PDFInfo
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- CN207123425U CN207123425U CN201720827996.2U CN201720827996U CN207123425U CN 207123425 U CN207123425 U CN 207123425U CN 201720827996 U CN201720827996 U CN 201720827996U CN 207123425 U CN207123425 U CN 207123425U
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Abstract
The utility model proposes a kind of portable sulfur trioxide sampling instrument, including gas sampling gun, condensation, control valve, pump, liquid storage bottle, drier and control panel, by way of being mixed in the blender that aqueous isopropanol is injected to sampling gun afterbody with flue gas, improve collection efficiency of the isopropanol to sulfur trioxide, reduce the dosage of isopropanol, it and gained sample concentration is higher, can suitably shorten the sampling time, be advantageous to the test of low concentration sulfur trioxide and promoting the use of for device.
Description
Technical field
It the utility model is related to environmental technology field, more particularly to a kind of portable sulfur trioxide sampling instrument.
Background technology
Sulfur trioxide present in coal steam-electric plant smoke is extremely easy to vapor and combines to form sulfuric acid mist, is coagulated on equipment heating surface
Knot causes to corrode, so as to endanger the life-span of equipment, operation conditions and surrounding environment.In order to avoid acid dew piont corrosion phenomenon, it is necessary to
The exhaust gas temperature of boiler is improved, but so easily causes the waste of heat energy.Therefore, the content for detecting sulfur trioxide in flue gas is electricity
Factory runs and the important references of debugging.
Because the concentration of sulfur trioxide in flue gas is generally relatively low, and property is active, and Coexisting component is sampled and tested to it
Operation interferes, and the testing result generally existing relatively large deviation of sulfur trioxide, efficiently sampling difficulty of test are very big at present.
The utility model of Application No. 201310199163.2, disclose sulfuric acid mist on-line checking in a kind of wet flue gas and fill
Put, the flue gas that its sampling is maintained at 150-250 DEG C with pretreatment process is passed through the converter equipped with phosphorus pentoxide, and flue gas is done
It is dry, after monitored in real time with infrared monitor.This utility model can exclude the interference of flue gas reclaimed water, acid mist and sulfur dioxide,
But equipment cost is higher.
The utility model of Application No. 201510506573.6, it is automatic to disclose a kind of portable sulfur trioxide chemical absorbing
Sampling apparatus, isopropanol is used to collect the sulfur trioxide in flue gas for absorbing liquid.This method is simple in construction, automaticity is high,
Sulfur trioxide can be accurately collected, but the sampling time is longer, and absorbing liquid dosage is big.
Utility model content
The defects of existing for prior art, it is a kind of the utility model proposes a kind of portable sulfur trioxide sampling instrument
Portable sulfur trioxide sampling instrument, including：Gas sampling gun module, condensation module and liquid storage and power plant module, wherein, institute
Stating gas sampling gun module includes the fore filter, sampling pipe, the blender that are sequentially connected, and be arranged on the sampling pipe and
The first heating and temperature controlling device and the second heating and temperature controlling device outside blender；The condensation module includes what is be interconnected
Condenser pipe and constant temperature water tank；The condenser pipe connects with the blender of the gas sampling gun module；Liquid storage and the power mould
Block includes solution pump, air pump, isopropanol storage bottle, sample bottle, the first volume flowmeter, the second volume flowmeter, the isopropyl
Alcohol storage bottle is connected by the solution pump and the first volume flowmeter with the blender, the sample bottle respectively with the condensation
Pipe, air pump connection, second volume flowmeter are arranged on the pipeline that the sample bottle connects with the air pump.
Further, the blender is the flue gas blender of class drops structure, and flue gas, absorbing liquid entrance are respectively positioned on knot
The thinner end of structure.
Further, the condensation module also includes the water circulating pump being arranged in the constant temperature water tank, Yi Jishe
Put the 3rd heating and temperature controlling device outside the constant temperature water tank.
Further, the material of the sampling pipe and blender is quartz glass.
Further, the condenser pipe is the spiral cold-finger of quartz glass material, and its internal diameter is not more than 3.0mm, encloses footpath
Between 85-90mm, overall circumference 150-200cm.
Further, in addition to control panel, the control panel respectively with solution pump, air pump, the first volume flow
Meter and the second volume flowmeter transmission information.
Tthe utility model system reduces aqueous isopropanol dosage, and sample solution concentration is high, can suitably shorten the sampling time, profit
In the test of low concentration sulfur trioxide, beneficial to promoting the use of for device.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of portable sulfur trioxide sampling instrument in the utility model；
In figure：1-1- sampling guns fore filter, 1-2- sampling guns sampling pipe, 1-3- sampling guns blender, 1-4- first
Heating and temperature controlling device, the heating and temperature controlling devices of 1-5- second, 2-1- spiral cold-fingers, 2-2- constant temperature water tanks, 2-3- water circulating pumps, 2-
The heating and temperature controlling devices of 4- the 3rd, 3-1- solution pumps, 3-2- air pumps, the stop valves of 4-1- first, the stop valves of 4-2- second, 4-3-
Three stop valves, the stop valves of 4-4- the 4th, 5-1- isopropanols storage bottle, 5-2- sample bottles, 6-1- driers, the volume flows of 7-1- first
Meter, the volume flowmeters of 7-2- second, 8- control panels.
Embodiment
The embodiment of portable sulfur trioxide sampling instrument a kind of to the utility model carries out detailed below in conjunction with the accompanying drawings
Describe in detail it is bright, the embodiment be merely to illustrate the utility model rather than limitation the scope of the utility model, people in the art
Modification of the member to the various equivalent form of values of the present utility model falls within the application appended claims limited range.
Such as Fig. 1, a kind of portable sulfur trioxide sampling instrument includes three portable modules, and modules A is gas sampling gun 1, mould
Block B is condensation 2, remaining component part such as pump 3, the 4th stop valve 4-4, liquid storage bottle 5, drier 6, volume flowmeter 7, control
The comprising modules C of panel 8 processed, connected with teflon hose between module.
Modules A includes gas sampling gun 1, the first stop valve 4-1 and the second stop valve 4-2, and overall specification is 100 × 100
×1500mm3.Gas sampling gun 1 is by sampling gun fore filter 1-1, sampling gun sampling pipe 1-2, sampling gun blender 1-3,
One heating and temperature controlling device 1-4 and the second heating and temperature controlling device 1-5 compositions.Sampling gun fore filter 1-1 is sintering metal material
Optional component, to remove the particulate matter in flue gas, the sampling for high ash-laden gas.Sampling gun sampling pipe 1-2 and sampling gun
Blender 1-3 materials are the quartz glass of corrosion-and high-temp-resistant, wherein, sampling gun blender 1-3 is class drops structure, cigarette
Gas, absorbing liquid entrance are respectively positioned on thinner end, so that flue gas mixes with the uniform of absorbing liquid.First heating and temperature controlling device 1-4 and
Second 1-5 points of the heating and temperature controlling device thermal resistance that insulation material is coated with for outside, air sampling rifle is two inside and outside flue respectively
The sampling gas path temperature of section, to prevent sulfur trioxide from condensing.In a case study on implementation, the temperature is controlled at 200-300 DEG C.
In another replacement case, because flue-gas temperature is higher than control temperature, it is only necessary to control the second heating and temperature controlling device
1-5 is to maintain temperature of the sampling gun in the part outside flue to be in 200-300 DEG C, to save sampling cost.
Module B is condensation 2, and overall is about 300 × 500 × 500mm3, including spiral cold-finger 2-1, constant temperature water tank
2-2, water circulating pump 2-3 and the 3rd heating and temperature controlling device 2-4.By heating the 3rd heating and temperature controlling device 2-4 by constant temperature water tank 2-2
Reclaimed water heats, and is received with water circulating pump 2-3 control hot water with the circulation at spiral cold-finger 2-1 with controlling condensation temperature with condensing
Collect sulfur trioxide.On the pipeline that the condenser pipe 2-1 connects with the blender (1-3) of the gas sampling gun modules A, it is provided with
4th stop valve 4-4.Wherein, spiral cold-finger 2-1 is quartz glass material, and its internal diameter is not more than 3.0mm, and circle footpath is in 85-
Between 90mm, overall circumference 150-200cm, the temperature that controls of condensation is 60-80 DEG C.4th stop valve 4-4 is supporting with flowmeter
The valve used, you can switch and Flow-rate adjustment can be made.Valve is closed, and is evacuated pump startup, can examine the vacuum of pump, school
Test the performance of aspiration pump；Valve is finely tuned, and can adjust extraction flow.
Module C is liquid storage and power plant module, including 3-1- solution pumps, 3-2- air pumps, the stop valves of 4-4- the 4th, 5-1- different
Propyl alcohol storage bottle, 5-2- sample bottles, 6-1- driers, the volume flowmeters of 7-1- first, the volume flowmeters of 7-2- second, control panel
8, overall is about 300 × 400 × 500mm3.80vol.% aqueous isopropanol is contained in isopropanol storage bottle 5-1, passes through solution pump
3-1 is conveyed, and controls transfer pipeline and flow by the first stop valve 4-1 and the first volume flowmeter 7-1；3rd stop valve
4-3 is arranged on the isopropanol storage bottle 5-1 and the blender (1-3) communicating pipe, and the condenser pipe 2-1 and blender
(1-3) on pipeline, spiral cold-finger 2-1 is rinsed for aqueous isopropanol between communicating pipe.
Sample is stored in glass sample bottle 5-2；The power of gas sampling is provided by air pump 3-2, and adopting before pump
Sample gas circuit is provided with the 4th stop valve 4-4 and the second volume flowmeter 7-2 control tolerance；It is additionally provided with before air pump 3-2 and fills discoloration
The drier 6-1 of silica gel, to protect air pump.In addition, pipeline is polytetrafluoroethylene (PTFE) material in module C.
In a case study on implementation, solution pump 3-1, air pump 3-2, the first stop valve 4-1, the second stop valve 4-2, the 3rd
Stop valve 4-3 and the 4th stop valve 4-4, is controlled by control panel 8, and control panel 8 receives the first volume flowmeter 7-1 and the
The flow information that two volume flowmeter 7-2 are sent, then generate control signal and be respectively issued to solution pump 3-1, air pump 3-2, the
One stop valve 4-1, the second stop valve 4-2, the 3rd stop valve 4-3 and the 4th stop valve 4-4.The flue gas flow rate of sampling is 2.0-
10.0L/min, isopropanol dosage are 0.5-2mL/min, sampling time 30-60min.
The sampling detailed process of the utility model device is：
I. in sampling process, flue gas removes particulate matter via sampling gun fore filter 1-1 and enters sampling gun, via sampling
Rifle sampling pipe 1-2 enters sampling gun blender 1-3, and via solution pump 3-1, the first volume flowmeter 7-1, the first stop valve 4-
1 enters sampling gun blender 1-3 80vol.% aqueous isopropanol mixing.
II. gaseous mixture enters condensation 2 via the second stop valve 4-2, sulfur trioxide and aqueous isopropanol in flue gas
Mixture is condensed in spiral cold-finger 2-1, and remaining flue gas is via liquid storage bottle 5-2, drier 6-1, the 4th stop valve 4-4 and
Two volume flowmeter 7-2, air pump 3-2 are discharged.
III. after sampling terminates, the first stop valve 4-1, the second stop valve 4-2 are closed, and aqueous isopropanol is via the 3rd cut-off
Valve 4-3 rinses spiral cold-finger 2-1, and gained sample collection is in sample bottle 5-2.
The utility model aqueous isopropanol dosage is small, and sample solution concentration is high, can suitably shorten the sampling time, beneficial to low dense
The test of sulfur trioxide is spent, beneficial to promoting the use of for device.
The utility model device has following beneficial technique effect：
1. device is divided into three modules, it is easy to carry；
2. device gas sampling gun front end is provided with sintered metal filter, particulate matter in effectively catching flue gas, it is right to reduce its
The interference of sampling；
3. being provided with two-stage temperature-controlling component outside device gas sampling gun, temperature control is more accurate reasonable；
4. device afterbody is provided with the blender of class drops, absorbing liquid effectively mixes with flue gas in blender, improves different
Propyl alcohol is to the absorptivity of sulfur trioxide, so as to reduce the dosage of isopropanol；
5. device sampling process sampling gun temperature is 200-300 DEG C, temperature control is 60-80 DEG C at condenser pipe, effectively collects cigarette
Sulfur trioxide in gas.
Preferred embodiment of the present utility model, still, the utility model and unlimited is described in detail above in association with accompanying drawing
Detail in above-mentioned embodiment, can be to skill of the present utility model in range of the technology design of the present utility model
Art scheme carries out a variety of simple variants, and these simple variants belong to the scope of protection of the utility model.
Claims (6)
1. a kind of portable sulfur trioxide sampling instrument, including：Gas sampling gun module (A), condensation module (B) and liquid storage and
Power plant module (C), wherein,
The gas sampling gun module (A) includes fore filter (1-1), sampling pipe (1-2), the blender (1- being sequentially connected
3), and the first heating and temperature controlling device (1-4) being arranged on outside the sampling pipe (1-2) and blender (1-3) and second adds
Hot temperature regulating device (1-5)；
The condensation module (B) includes interconnected condenser pipe (2-1) and constant temperature water tank (2-2)；Condenser pipe (the 2-
1) blender (1-3) with the gas sampling gun module (A) connects；
The liquid storage and power plant module (C) include solution pump (3-1), air pump (3-2), isopropanol storage bottle (5-1), sample bottle
(5-2), the first volume flowmeter (7-1), the second volume flowmeter (7-2), the isopropanol storage bottle (5-1) pass through the solution
Pump (3-1) and the first volume flowmeter (7-1) connect with the blender (1-3), the sample bottle (5-2) respectively with it is described cold
Solidifying pipe (2-1), the air pump (3-2) connection, second volume flowmeter (7-2) be arranged on the sample bottle (5-2) with
On the pipeline of air pump (3-2) connection.
2. portable sulfur trioxide sampling instrument according to claim 1, it is characterised in that：The blender (1-3) is class
The flue gas blender of drops structure.
3. portable sulfur trioxide sampling instrument according to claim 1, it is characterised in that：The condensation module (B)
Also include the water circulating pump (2-3) being arranged in the constant temperature water tank (2-2), and be arranged on the constant temperature water tank (2-2) outside
3rd heating and temperature controlling device (2-4) in portion.
4. portable sulfur trioxide sampling instrument according to claim 1, it is characterised in that：The sampling pipe (1-2) and mixed
The material of clutch (1-3) is quartz glass.
5. portable sulfur trioxide sampling instrument according to claim 1, it is characterised in that：The condenser pipe (2-1) is stone
The spiral cold-finger of English glass material, its internal diameter are not more than 3.0mm, and circle footpath is between 85-90mm, overall circumference 150-200cm.
6. portable sulfur trioxide sampling instrument according to claim 1, it is characterised in that：Also include control panel (8), institute
State control panel (8) respectively with solution pump (3-1), air pump (3-2), the first volume flowmeter (7-1) and the second volume flow
Count (7-2) transmission information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720827996.2U CN207123425U (en) | 2017-07-10 | 2017-07-10 | A kind of portable sulfur trioxide sampling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720827996.2U CN207123425U (en) | 2017-07-10 | 2017-07-10 | A kind of portable sulfur trioxide sampling instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207123425U true CN207123425U (en) | 2018-03-20 |
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ID=61612383
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720827996.2U Active CN207123425U (en) | 2017-07-10 | 2017-07-10 | A kind of portable sulfur trioxide sampling instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110954377A (en) * | 2019-12-03 | 2020-04-03 | 华电电力科学研究院有限公司 | SO in flue gas based on condensation separation3Detection device and method |
-
2017
- 2017-07-10 CN CN201720827996.2U patent/CN207123425U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110954377A (en) * | 2019-12-03 | 2020-04-03 | 华电电力科学研究院有限公司 | SO in flue gas based on condensation separation3Detection device and method |
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