CN201289465Y - Device for measuring sulfide in flue gas - Google Patents
Device for measuring sulfide in flue gas Download PDFInfo
- Publication number
- CN201289465Y CN201289465Y CNU2008201005534U CN200820100553U CN201289465Y CN 201289465 Y CN201289465 Y CN 201289465Y CN U2008201005534 U CNU2008201005534 U CN U2008201005534U CN 200820100553 U CN200820100553 U CN 200820100553U CN 201289465 Y CN201289465 Y CN 201289465Y
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- pipe
- sulfide
- outer tube
- flue gas
- electric heating
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Abstract
The utility model discloses a device for measuring sulfide in a smoke gas. The device comprises a smoke gas absorption bottle, a vacuum air pump, a wet gas meter and a sampling tube, wherein an air inlet is formed at the bottom part of the smoke gas absorption bottle; an air outlet is formed at the top part thereof; the air inlet is connected with an outlet of the sampling tube; the air outlet is connected with an inlet of the vacuum air pump; and an outlet of the vacuum air pump is connected with an inlet of the wet gas meter. The novel device for measuring sulfide in a smoke gas has the advantages of high measuring precision, simple operation and low cost.
Description
Technical field
The utility model relates to the determination techniques of sulfide in the flue gas, relates in particular to the determinator of sulfide in the flue gas.
Background technology
The discharging severe contamination of sulfide air quality in the flue gas, therefore the flue gas that contains sulfide is carried out desulfurization, could discharge after reaching emission standard, and to what of sulfide concentration before the desulfurization and in the flue gas after desulfurization, whether allow compliance with emission standards just seems particularly important.
In the prior art, the content that adopts the platinum filament conversion method to detect sulfide is arranged, platinum filament costs an arm and a leg, and causes detecting the cost height, and complicated operation, is unfavorable for the popularization of this technology.And the instrument price of other test sulfide is also more expensive, and test philosophy also has nothing in common with each other, and it is very complicated to operate.
The utility model content
In view of this, the utility model provides a kind of cost low, the determinator of sulfide in the flue gas simple to operate.
The utility model provides the determinator of sulfide in a kind of flue gas, comprise smoke absorption bottle, vacuum pump, wet gas meter and sampling pipe, air intake opening is set in described smoke absorption bottle bottom and the top sets out gas port, described air intake opening is connected with the sampling pipe outlet, the gas outlet is connected with the vacuum pump import, and described vacuum pump outlet is connected with the wet gas meter import.
Further, on the described sampling pipe electric heating and thermal insulation device is set, described electric heating and thermal insulation device is provided with temperature controller;
Further, described electric heating and thermal insulation device is the electric heating thermal insulation band, in described sampling pipe comprises pipe and be enclosed within the mode of clearance fit in the outer outer tube of pipe, described electric heating thermal insulation band is arranged in the gap of interior pipe and outer tube, and pipe and outer tube axial seal in making, the pipe outlet is connected with air intake opening in described, and described outer tube stretches out along interior pipe entrance point, in the outer tube of described interior pipe entrance point absorbent cotton is set.
The beneficial effects of the utility model are: adopt the determinator of sulfide in the flue gas of the present utility model, measuring accuracy height, simple to operate, with low cost.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
As shown in the figure, the determinator of sulfide comprises smoke absorption bottle 1, vacuum pump 2, wet gas meter 3 and sampling pipe 4 in the flue gas.Pipe 9 in sampling pipe 4 comprises, be enclosed within the mode of clearance fit in outer tube 10 and electric heating thermal insulation band 8 on pipe 9 cylindricals, electric heating thermal insulation band 8 is arranged in the gap of interior pipe 9 and outer tube 10, pipe 9 and outer tube 10 axial seals in making, outer tube 10 stretches out along the entrance point of interior pipe 9, in the outer tube of interior pipe 9 entrance points absorbent cotton 11 is set; Smoke absorption bottle 1 bottom is provided with draft tube 5, and the top sets out tracheae 6, and draft tube 5 is connected with interior pipe 9 outlets by flexible pipe, and escape pipe 6 is connected with vacuum pump 2 imports by flexible pipe, and vacuum pump 2 outlets are connected with wet gas meter 3 by flexible pipe.
Each parts of this device adopt flexible pipe to connect, and can make things convenient for installation, the dismounting of each parts or regulate flexible; The absorbent cotton 11 that is provided with in sampling pipe 4 extending parts can carry out dedusting and oil removal treatment to flue gas, avoids dust and grease to enter in the smoke absorption bottle 1; Before sampling pipe 4 feeds flue gases, the power supply of electric heating thermal insulation band 8 is inserted temperature controller 7 can carry out preheating and insulation sampling pipe 4, help sulfide and incorporate H in the smoke absorption bottle 1
2O
2In the solution.
Adopt the utility model device to measure the concentration of sulfide in the flue gas below:
At first carry out sample collection, 100mL 3% (volumetric concentration) H packs in smoke absorption bottle 1
2O
2Solution is as the absorption liquid of sulfide; Open vacuum pump 2, take out the gas in the device, the gas meter on the wet gas meter 3 is returned to zero; Again the power supply of electric heating thermal insulation band 8 is connected on the temperature controller 7, sampling pipe 4 is carried out preheating and insulation; Feed flue gases to sampling pipe 4, the volume 10L of the absorption flue gas that the gas meter on the record wet gas meter 3 shows, temperature t ℃ and pressure P m close vacuum pump 2; At last the absorption liquid in the smoke absorption bottle 1 is all changed in the polyethylene bottle.
Carry out titration and detect, from polyethylene bottle, accurately measure the 10mL sample liquid to conical flask; Measure the 40mL isopropyl alcohol with graduated cylinder and add in the conical flask, drip 1mL acetate with dropper again, 3～5 arsenazo-III indicator shake up; Barium acetate solution with 0.005mol/L carries out titration, till solution colour becomes purple by redness; The volume M of the record barium acetate solution that titration consumed.
Oppose than test with distilled water, accurately measure 10mL distilled water to conical flask; Measure the 40mL isopropyl alcohol with graduated cylinder and add in the conical flask, drip 1mL acetate with dropper again, 3～5 arsenazo-III indicator shake up; Barium acetate solution with 0.005mol/L carries out titration, till solution colour becomes purple by redness; The volume N of the record barium acetate solution that titration consumed.
Calculate the content of sulfide in the flue gas at last according to the volume of consumption barium acetate, the concentration Counting Formula of sulfide:
C＝L×(M-N)×(X/Z)×1000/{Y×[273.15/(273.15+t)]×[(Pa+Pm-Pv)/760]}
The substitution data get:
＝0.112×(M-N)×(100/10)×1000/{10×[273.15/(273.15+t)]
×[(Pa+Pm-Pv)/760]}
Wherein: the concentration of C-sulfide, ppm
0.112 the 0.005mol/L barium acetate solution of-1mL is for the equivalent volume of the sulfide gas under the standard state, ml
The volume of M-barium acetate solution that the titration sample liquid is consumed, mL
The volume of N-barium acetate solution that titration distilled water liquid is consumed, mL
X-H packs into
2O
2The volume of solution, mL
The volume of Y-absorption flue gas, L
Z-from H
2O
2Measure the volume of sample liquid in the solution, mL
T-wet gas meter thermometer temperature, ℃
Pa-atmospheric pressure, mmHg
Pm-wet gas meter pressure, mmHg
Saturated vapor pressure in the time of Pv-t ℃, mmHg (acquisition of tabling look-up).
As the flue gas with certain power plant desulfurization device portal is example, adopts this contrive equipment, and 250mL 3% (volumetric concentration) H packs into
2O
2The volume of solution, absorption flue gas is 10L, measures the 10mL sample liquid that with the titration of 0.005mol/L barium acetate solution, test obtaining following data:
0.112 the 0.005mol/L barium acetate solution of-1mL is for the equivalent volume of the sulfide gas under the standard state, mL (acquisition of tabling look-up)
The volume of M-titration barium acetate solution that sample liquid consumes is 9.7mL
The volume 0.03mL of N-titration distilled water barium acetate solution that liquid consumes
T-wet gas meter thermometer temperature is 11.5 ℃
Pa-atmospheric pressure 760mmHg
Pm-wet gas meter pressure, 0mmHg
Saturated vapor pressure in the time of Pv-11.5 ℃, 10.2mmHg (acquisition of tabling look-up)
The substitution formula gets:
C＝0.112×(9.7-0.03)×(250/10)×1000/{10×[273.15/(273.15+11.5)]×[(760+0-10.2)/760]}
＝2817ppm
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (3)
1. the determinator of sulfide in the flue gas, it is characterized in that: comprise smoke absorption bottle (1), vacuum pump (2), wet gas meter (3) and sampling pipe (4), air intake opening (5) is set in described smoke absorption bottle (1) bottom and the top sets out gas port (6), described air intake opening (5) is connected with sampling pipe (4) outlet, gas outlet (6) is connected with vacuum pump (2) import, and described vacuum pump (2) outlet is connected with wet gas meter (3) import.
2. the determinator of sulfide in the flue gas according to claim 1 is characterized in that: described sampling pipe is provided with electric heating and thermal insulation device on (4), and described electric heating and thermal insulation device is provided with temperature controller (7).
3. the determinator of sulfide in the flue gas according to claim 2, it is characterized in that: described electric heating and thermal insulation device is electric heating thermal insulation band (8), described sampling pipe (4) comprises interior pipe (9) and is enclosed within the outer outer tube (10) of interior pipe (9) in the mode of clearance fit, described electric heating thermal insulation band (8) is arranged in the gap of interior pipe (9) and outer tube (10), and make interior pipe (9) and outer tube (10) axial seal, pipe (9) outlet is connected with air intake opening (5) in described, described outer tube (10) stretches out along interior pipe (9) entrance point, in the outer tube (10) of described interior pipe (9) entrance point absorbent cotton (11) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201005534U CN201289465Y (en) | 2008-11-14 | 2008-11-14 | Device for measuring sulfide in flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201005534U CN201289465Y (en) | 2008-11-14 | 2008-11-14 | Device for measuring sulfide in flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201289465Y true CN201289465Y (en) | 2009-08-12 |
Family
ID=40981149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201005534U Expired - Lifetime CN201289465Y (en) | 2008-11-14 | 2008-11-14 | Device for measuring sulfide in flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201289465Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408518B (en) * | 2008-11-14 | 2011-02-09 | 中电投远达环保工程有限公司 | Device and method for measuring sulfide in flue gas |
| CN105954275A (en) * | 2016-05-25 | 2016-09-21 | 河北中烟工业有限责任公司 | Method for determination of sulfides in cigarette smoke |
-
2008
- 2008-11-14 CN CNU2008201005534U patent/CN201289465Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408518B (en) * | 2008-11-14 | 2011-02-09 | 中电投远达环保工程有限公司 | Device and method for measuring sulfide in flue gas |
| CN105954275A (en) * | 2016-05-25 | 2016-09-21 | 河北中烟工业有限责任公司 | Method for determination of sulfides in cigarette smoke |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090812 Effective date of abandoning: 20081114 |