CN100456034C - Constant sulphur appliance with airflow stabilizing device - Google Patents
Constant sulphur appliance with airflow stabilizing device Download PDFInfo
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- CN100456034C CN100456034C CNB2006100323179A CN200610032317A CN100456034C CN 100456034 C CN100456034 C CN 100456034C CN B2006100323179 A CNB2006100323179 A CN B2006100323179A CN 200610032317 A CN200610032317 A CN 200610032317A CN 100456034 C CN100456034 C CN 100456034C
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- damping
- pump
- air
- stabilizing device
- air flow
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Abstract
The invention discloses sulfur determination instrument with airflow stabilizing device. It includes furnace body, control mechanism, electrolytic cell, drying unit, flow meter, and pump. The furnace body is set combustion tube of which tail end is connected with the electrolytic cell by pipeline. The entry end of the furnace body is set sample nozzle connected with sample device. The airflow stabilizing device is set between the pump and flow meter which includes damping body that its air intake is connected with flow meter; air outlet is connected with the pump. The invention not only can ensure flow rate value stable at any time, no moment fluctuation, be convenient to read, detect, and control, but also keep the air flow rate in required range for long, reduce pump load to prolong its useful life, reduce noise. This is good for instrument total automation and increasing overall measurement precision.
Description
Technical field
The present invention is mainly concerned with the measuring equipment field of sulfur content in the combustible, refers in particular to a kind of constant sulphur appliance with air flow stabilizing device.
Background technology
Sulphur is topmost oxious component in the coal sample, mainly is present in the coal with forms such as elemental sulfur, sulfide and sulfate, and the contained sulfide of coal can generate harmful SO after burning
2And SO
3Gas and flying dust etc. enter in the atmosphere with flue gas, cause atmosphere and environmental pollution, and therefore the detection to sulfur content in the coal sample is a very important job of coal production, sale, use and environmental administration.In the prior art,, generally adopt constant sulphur appliance as measuring equipment commonly used in order to measure the sulfur content in the combustible accurately and rapidly.In various measuring equipments,, all adopt the sulphur method of coulomb surveying as constant sulphur appliance etc.The coal sample back of burning in reacting furnace produces sulphuric dioxide and a small amount of sulfur trioxide gas and enters by the pipeline that links to each other with the reacting furnace inner chamber and carry out titration in the electrolytic cell, gives birth to the content that electric weight that iodine and electric living bromine consumed is measured sulphur in the sample according to electricity.Pump is as power source in measuring process, adopts the mode of continuous air extraction, continuous coverage to measure, and the sulphur concentration that contains in the gas distributes very inhomogeneously in time, therefore requires air-flow more stable, adopts suspended body flowmeter to do the flow indication usually.Because pump generally produces air-flow by gas bowl electromagnetism adhesive campaign, and uses AC power, continuous working more, its turnover airshed is unbalanced, causes the air-flow instability, and promptly moment beats and passing gas bowl fatigue in time, causes flow to descend gradually.When variations in flow, sulfur content is difficult to accurate mensuration, thus the degree of accuracy that influence is measured, and the pump life-span also shortens because of laod unbalance.
Summary of the invention
The technical problem to be solved in the present invention just is: at the technical matters of prior art existence, the invention provides a kind of constant sulphur appliance of band air flow stabilizing device simple in structure, it not only can guarantee flow value stable in any moment, and no transient fluctuation is convenient to read, detects and is controlled; And can guarantee the airshed long-term stability in the scope of requirement of experiment, passing that hardly can be in time and descending; The load that has simultaneously also alleviated pump prolongs its serviceable life and reduces noise.For the instrument full automation and improve the overall measurement precision favourable assurance is provided.
For solving the problems of the technologies described above, the solution that the present invention proposes is: a kind of constant sulphur appliance with air flow stabilizing device, it comprises the body of heater that is fixed on the base plate, control gear and the electrolytic cell that links to each other successively by pipeline, drying device, flowmeter and pump, be equiped with flame tube in the body of heater, electrolytic cell links to each other with the tail end of flame tube by pipeline, the inlet end of body of heater is provided with the sample presentation mouth, the sample presentation mouth links to each other with sample conveying device, it is characterized in that: be provided with air flow stabilizing device between described pump and the flowmeter, this air flow stabilizing device comprises damping body, the air intake opening of damping body links to each other with flowmeter, and the gas outlet links to each other with pump.
Offer damping through hole in small-bore on the described damping body, small-bore damping through hole one end is communicated with the heavy caliber air intake opening, and the other end is communicated with the heavy caliber gas outlet.
Offer damping cavity in the described damping body, an end of damping cavity is communicated with the heavy caliber air intake opening by the air inlet damping fin, and the other end is communicated with the heavy caliber gas outlet by the damping fin of giving vent to anger; Offer one or more small-bore damping hole on the air inlet damping fin and the damping fin of giving vent to anger.
Air inlet damping fin and give vent to anger and be provided with a slice or the above damping fin of a slice between the damping fin in the described damping cavity offers one or more damping hole on the damping fin.
Described damping hole is circular, square, ellipse or triangle.
The pump draft tube of described pump links to each other with the air balance device, and this air balance device comprises the branch road draft tube more than one or one and be installed on variable valve on the branch road draft tube that the pump draft tube of pump links to each other with the branch road draft tube.
Compared with prior art, advantage of the present invention just is: the constant sulphur appliance of band air flow stabilizing device of the present invention is simple in structure, with low cost, by setting up an air flow stabilizing device at pump and flowmeter, make air-flow since the transient fluctuation (Wave crest and wave trough variation) that causes of pump self working method because of moment change in flow disappear, thereby reach the effect of steady air flow.The present invention further makes the pump draft tube of pump link to each other with an air balance device, make pump always remain on work under the rated power state, alleviated the load of pump, it is steady in a long-term in the requirement of experiment scope that air-flow is realized, passing that hardly can be in time and descending, also prolong simultaneously the serviceable life of pump, reduced noise.
Description of drawings
Fig. 1 is a plan structure synoptic diagram of the present invention;
Fig. 2 is the structural representation of the embodiment 1 of air flow stabilizing device among the present invention;
Fig. 3 is the structural representation of the embodiment 2 of air flow stabilizing device among the present invention;
Fig. 4 is the structural representation of the embodiment 3 of air flow stabilizing device among the present invention;
Fig. 5 is the structural representation of damping fin among the present invention;
Fig. 6 is the structural representation of the embodiment 1 of air balance device among the present invention;
Fig. 7 is the structural representation of the embodiment 2 of air balance device among the present invention.
Marginal data
1, control gear 2, base plate
3, pump 4, flowmeter
5, drying device 6, air flow stabilizing device
7, electrolytic cell 8, flame tube
9, body of heater 10, sample boat platform
11, sample presentation mouth 12, sample boat
13, sample conveying device 14, air balance device
31, pump draft tube 32, main road tracheae
61, damping body 62, air intake opening
63, gas outlet 64, damping through hole
65, damping cavity 66, air inlet damping fin
67, give vent to anger damping fin 68, damping hole
69, damping fin 141, branch road draft tube
142, variable valve
Embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details.
As shown in Figure 1, the constant sulphur appliance of band air flow stabilizing device of the present invention, it comprises the body of heater 9 that is fixed on the base plate 2, control gear 1 and the electrolytic cell 7 that links to each other successively by pipeline, drying device 5, flowmeter 4 and pump 3, be equiped with flame tube 8 in the body of heater 9, electrolytic cell 7 links to each other by the tail end of pipeline with flame tube 8, the inlet end of body of heater 9 is provided with sample presentation mouth 11, sample presentation mouth 11 links to each other with sample conveying device 13, this sample conveying device 13 is used for the sample boat 12 that splendid attire coal sample to be measured held in the palm in sample presentation mouth 11 is sent into flame tube 8 by sample boat platform 10 and fully burns, the gas of discharging of the having burnt electrolytic cell 7 of flowing through successively, drying device 5, flowmeter 4 and pump 3, thereby obtain one group of experimental data, finish surveying work.This sample conveying device 13 can adopt the mechanism of artificial sample presentation, also can adopt the mechanism of automatic sample conveying.Control gear 1 is motion, location and the data acquisition that is used to control whole instrument; Electrolytic cell 7 is used for analyzing the sulfur content from the air-flow of body of heater 9 extractions; Drying device 5 is used for absorbing the moisture of discharging air-flow; Flowmeter 4 is used to measure and control the size of airshed; Pump 3 is used to provide air-flow power.In the constant sulphur appliance of the present invention, be provided with air flow stabilizing device 6 between pump 3 and the flowmeter 4, this air flow stabilizing device 6 comprises damping body 61, and the air intake opening 62 of damping body 61 links to each other with flowmeter 4, and gas outlet 63 links to each other with pump 3, plays the effect of steady air flow.Referring to shown in Figure 2, in the embodiments of the invention 1, offer the damping through hole 64 of small-bore on the damping body 61, damping through hole 64 1 ends are communicated with air inlet 62, and the other end is communicated with gas outlet 63.Air-flow enters damping body 61 from wide-aperture air inlet 62, by flowing out from wide-aperture gas outlet 63 behind the damping through hole 64 of small-bore again.Air-flow is because of the cataclysm of pore size, cause flow velocity to increase sharply, thereby eliminated the phenomenon of the air-flow transient fluctuation that pump 3 self working method causes.Referring to shown in Figure 3, in the embodiments of the invention 2, offer damping cavity 65 in the damping body 61, an end of damping cavity 65 is communicated with air intake opening 62 by air inlet damping fin 66, and the other end is communicated with gas outlet 63 by the damping fin 67 of giving vent to anger; Offer one or more damping hole 68 on the air inlet damping fin 66 and the damping fin 67 of giving vent to anger.Air-flow enters damping body 61 from wide-aperture air intake opening 62, successively through damping hole 68 on damping hole 68, damping cavity 65 on the air inlet damping fin 66 and the damping fin 67 of giving vent to anger, flows out from wide-aperture gas outlet 63 at last.Air-flow is because of the cataclysm of pore size, cause flow velocity to increase sharply, thereby eliminated the phenomenon of the air-flow transient fluctuation that pump self working method causes.Referring to shown in Figure 4, in the embodiments of the invention 3, further the air inlet damping fin 66 in damping cavity 65 and give vent to anger and be provided with a slice or the damping fin more than a slice 69 between the damping fin 67 offers one or more damping hole 68 on the damping fin 69.Air-flow enters damping body 61 from wide-aperture air intake opening 62, through damping hole 68, damping cavity 65 on the damping fin 69 more than damping hole 68, damping cavity 65, a slice or a slice on the air inlet damping fin 66 and the damping hole 68 on the damping fin 67 of giving vent to anger, flow out from wide-aperture gas outlet 63 at last successively.Air-flow is because of the cataclysm of pore size, cause flow velocity to increase sharply, thereby eliminated the phenomenon of the air-flow transient fluctuation that pump self working method causes.In all embodiments, referring to shown in Figure 5, damping hole 68 can be designed to circle, square, oval, triangle as required or other are irregularly shaped, to satisfy the stable needs of actual airflow.In the constant sulphur appliance of the present invention, the pump draft tube 31 of pump 3 links to each other with air balance device 14, this air balance device 14 comprises the branch road draft tube 141 more than one or one and is installed on variable valve 142 on the branch road draft tube 141 that the pump draft tube 31 of pump 3 links to each other with branch road draft tube 141.Referring to shown in Figure 6, among the embodiment 1 of air balance device 14 of the present invention, air balance device 14 comprises a branch road draft tube 141 and is installed on variable valve 142 on the branch road draft tube 141, and the airshed of pump draft tube 31 is 32 airshed sums in airshed and the main road tracheae in the branch road tracheae 141.The airshed that produces because of pump 3 is constant relatively, so can control the airshed of main road tracheae 32 by regulating variable valve 142.When the airshed of branch road tracheae 141 was big, the airshed of main road tracheae 32 was just little; Otherwise when the airshed of branch road tracheae 141 hour, the airshed of main road tracheae 32 is just big, makes the turnover air-flow of pump 3 in a basic balance.Can avoid directly regulating the flow of pump 3 like this, increase the resistance of motion of pump 3, thus the load that alleviates pump 3, the long-term stability that realizes air-flow in the requirement of experiment scope, passing that hardly can be in time and descending.Referring to shown in Figure 7, among the embodiment 2 of air balance device 14 of the present invention, this air balance device 14 comprises the branch road draft tube 141 more than one or one and is installed on variable valve 142 on the branch road draft tube 141 that the pump draft tube 31 of pump 3 links to each other with branch road draft tube 141.The airshed of pump draft tube 31 is airshed sums in airshed and the main road tracheae 32 in all branch road tracheaes 141.The airshed that produces because of pump 3 is constant relatively, so can control the airshed of main road tracheae 32 by regulating every variable valve 142 on the branch road tracheae 141 respectively.When the airshed sum of all branch road tracheaes 141 was big, the airshed of main road tracheae 32 was just little; Otherwise when the airshed sum of all branch road tracheaes 141 hour, the airshed of main road tracheae 32 is just big, makes the turnover air-flow of pump 3 in a basic balance.Can avoid directly regulating the flow of pump 3 like this, increase the resistance of motion of pump 3, thus the load that alleviates pump 3, the long-term stability that realizes air-flow in the scope of requirement of experiment, passing that hardly can be in time and descending.
Below only be one of some embodiment of the present invention, but be not limited to the textural association mode of the foregoing description.
Claims (5)
1, a kind of constant sulphur appliance with air flow stabilizing device, it comprises the body of heater (9) that is fixed on the base plate (2), control gear (1) and the electrolytic cell (7) that links to each other successively by pipeline, drying device (5), flowmeter (4) and pump (3), be equiped with flame tube (8) in the body of heater (9), electrolytic cell (7) links to each other by the tail end of pipeline with flame tube (8), the inlet end of body of heater (9) is provided with sample presentation mouth (11), sample presentation mouth (11) links to each other with sample conveying device (13), it is characterized in that: be provided with air flow stabilizing device (6) between described pump (3) and the flowmeter (4), this air flow stabilizing device (6) comprises damping body (61), the air intake opening (62) of damping body (61) links to each other with flowmeter (4), and gas outlet (63) link to each other with pump (3).
2, the constant sulphur appliance of band air flow stabilizing device according to claim 1, it is characterized in that: offer small-bore damping through hole (64) on the described damping body (61), small-bore damping through hole (64) one ends are communicated with large aperture air intake opening (62), and the other end is communicated with gas outlet, large aperture (63).
3, the constant sulphur appliance of band air flow stabilizing device according to claim 1, it is characterized in that: offer damping cavity (65) in the described damping body (61), one end of damping cavity (65) is communicated with large aperture air intake opening (62) by air inlet damping fin (66), and the other end is communicated with gas outlet, large aperture (63) by the damping fin of giving vent to anger (67); Offer one or more small-bore damping hole (68) on air inlet damping fin (66) and the damping fin of giving vent to anger (67).
4, the constant sulphur appliance of band air flow stabilizing device according to claim 3, it is characterized in that: be provided with the above damping fin (69) of a slice or a slice between interior air inlet damping fin of described damping cavity (65) (66) and the damping fin of giving vent to anger (67), offer one or more damping hole (68) on the damping fin (69).
5, according to the constant sulphur appliance of claim 3 or 4 described band air flow stabilizing devices, it is characterized in that: described damping hole (68) is circular, square, ellipse or triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100323179A CN100456034C (en) | 2006-09-27 | 2006-09-27 | Constant sulphur appliance with airflow stabilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100323179A CN100456034C (en) | 2006-09-27 | 2006-09-27 | Constant sulphur appliance with airflow stabilizing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1948958A CN1948958A (en) | 2007-04-18 |
| CN100456034C true CN100456034C (en) | 2009-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100323179A Expired - Fee Related CN100456034C (en) | 2006-09-27 | 2006-09-27 | Constant sulphur appliance with airflow stabilizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100456034C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526873C (en) * | 2006-09-27 | 2009-08-12 | 朱先德 | Constant sulphur appliance with airflow balancing device |
| CN105116097B (en) * | 2015-08-26 | 2017-03-22 | 常州大学 | Neutralization-process sulfur detector with oxygen flow rate control function |
Citations (11)
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| US3945904A (en) * | 1974-02-11 | 1976-03-23 | International Telephone & Telegraph Corporation | Process control system |
| US4325911A (en) * | 1978-01-23 | 1982-04-20 | International Telephone And Telegraph Corporation | Stack gas analyzer and thermal oxidation device therefor |
| JPS63218861A (en) * | 1987-03-06 | 1988-09-12 | Toyota Motor Corp | Coulometric titration analysis of sulfur |
| JPH10153577A (en) * | 1996-11-26 | 1998-06-09 | Mitsubishi Chem Corp | Sulfur content analysis method |
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| CN2483718Y (en) * | 2001-03-19 | 2002-03-27 | 长沙三德实业有限公司 | High temp. combustion tube of infrared sulphur analysis instrument |
| CN2520510Y (en) * | 2002-01-31 | 2002-11-13 | 国电环境保护研究所 | Instrument for quick analysis of total sulfur of coal |
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-
2006
- 2006-09-27 CN CNB2006100323179A patent/CN100456034C/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3945904A (en) * | 1974-02-11 | 1976-03-23 | International Telephone & Telegraph Corporation | Process control system |
| US4325911A (en) * | 1978-01-23 | 1982-04-20 | International Telephone And Telegraph Corporation | Stack gas analyzer and thermal oxidation device therefor |
| JPS63218861A (en) * | 1987-03-06 | 1988-09-12 | Toyota Motor Corp | Coulometric titration analysis of sulfur |
| JPH10153577A (en) * | 1996-11-26 | 1998-06-09 | Mitsubishi Chem Corp | Sulfur content analysis method |
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| CN2520510Y (en) * | 2002-01-31 | 2002-11-13 | 国电环境保护研究所 | Instrument for quick analysis of total sulfur of coal |
| CN2526850Y (en) * | 2002-01-31 | 2002-12-18 | 长沙三德实业有限公司 | Sample feeding mechanism for automatic sulphur tester |
| CN2588369Y (en) * | 2002-12-05 | 2003-11-26 | 长沙三德实业有限公司 | Automatic sulphur determining instrument |
| CN1584580A (en) * | 2004-06-02 | 2005-02-23 | 长沙三德实业有限公司 | Capacity fixed and loop closed cyclic gas analyzing method and device for surlfur determiner for circular titration |
| CN1948959A (en) * | 2006-09-27 | 2007-04-18 | 朱先德 | Constant sulphur appliance with airflow balancing device |
Non-Patent Citations (2)
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| 微库仑在线测硫仪的研制. 杜晓兰，于宝祥，张汝才.分析仪器，第1期. 1998 * |
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| Publication number | Publication date |
|---|---|
| CN1948958A (en) | 2007-04-18 |
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