CN104645734A - System and method for adjusting smoke flow balance of dust collector of thermal power plant - Google Patents
System and method for adjusting smoke flow balance of dust collector of thermal power plant Download PDFInfo
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- CN104645734A CN104645734A CN201510064860.6A CN201510064860A CN104645734A CN 104645734 A CN104645734 A CN 104645734A CN 201510064860 A CN201510064860 A CN 201510064860A CN 104645734 A CN104645734 A CN 104645734A
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Abstract
The invention discloses a system and a method for adjusting smoke flow balance of a dust collector of a thermal power plant. The system comprises a control system, an air volume detection device and flow adjustment devices, wherein the control system is used for receiving smoke flow information at outlets of all chambers of the dust collector and controlling the flow adjustment devices at inlets of all the chambers of the dust collector respectively; the air volume detection device is used for collecting the smoke flow information at the outlets of all the chambers of the dust collector; the flow adjustment devices are used for adjusting the air feeding amounts at the inlets of all the chambers of the dust collector. According to the system, the smoke flow between different chambers of the dust collector can be automatically balanced, so that the smoke flow flowing through each compartment is basically the same; the defect that the smoke flow distribution between different chambers of the existing dust collector is non-uniform is overcome, so that the smoke of a filtering bag in each chamber is balanced with actual force of each ash bin pump, the integral efficiency of the dust collector can be improved, and the service life of the filtering bag can be prolonged.
Description
Technical field
The present invention relates to smoke treatment amount adjustment field, thermal power plant's deduster each room, particularly relate to a kind of thermal power plant deduster plume airflow balance adjustment System and method of adjustment.
Background technology
The duster system of existing thermal power plant is generally Room 4 and arranges, in actual motion, the exhaust gas volumn deviation of each room process is very large, and surveying departure can reach 50%.The deviation of exhaust gas volumn will cause part room flue gas flow rate higher, and overall efficiency of dust collection reduces, and makes that ash disposal system each ash silo pump is actual exerts oneself and different design, occurs the problem that ash disposal is not smooth.Especially for sack cleaner, the room life-span of the filter bag that between different chamber, the deviation of exhaust gas volumn will cause exhaust gas volumn larger is on the low side, and the equipment that seriously has influence on normally uses, and causes business economic to lose.
Summary of the invention
The object of this invention is to provide a kind of thermal power plant deduster plume airflow balance adjustment System and method of adjustment, can autobalance adjustment deduster different chamber between flue gas flow, make the exhaust gas volumn flowing through each compartment substantially identical, overcome flue gas flow between existing deduster different chamber and distribute uneven shortcoming, make the actual torque equilibrium of flue gas flow by each room filter bag and each ash silo pump, the whole efficiency of deduster and the service life of filter bag can be improved.
The present invention adopts following technical proposals:
Thermal power plant's deduster plume airflow balance adjustment System, comprises
Control system, for receiving the exhaust gas volumn information in the exit, deduster each room that multiple Wind volume detector collects, and the exhaust gas volumn information collected is analyzed, then export the flow regulator that control signal controls each chamber inlet place of deduster respectively, the air quantity that enters of each room of deduster is regulated;
Wind volume detector, for gathering the exhaust gas volumn information in exit, deduster each room, deduster each room outlet is provided with Wind volume detector;
Flow regulator, for regulating the air quantity that enters at each chamber inlet place of deduster, each chamber inlet of deduster is provided with flow regulator;
The signal output part of multiple Wind volume detector is respectively by the signal input part of distributed control means connection control system, and the signal output part of control system also connects multiple flow regulator respectively by distributed control means.
Described Wind volume detector adopts multichannel wind trunk measurement mechanism, and Wind volume detector adopts welding manner to be fixed on deduster each room outlet inside wall, and the signal output part of Wind volume detector connects the signal input part of distributed control means by transmitter.
Described flow regulator adopts controllable register, and controllable register is fixed in each chamber inlet flue of deduster by stationary links, and the signal input part of flow regulator connects the signal output part of point distributed control means by transmitter.
Described control system performs following method and carries out the adjustment of plume airflow balance:
A: multiple Wind volume detector gathers the exhaust gas volumn information in exit, deduster each room respectively, and the exhaust gas volumn information collected is sent to control system by distributed control means, then enter step B;
B: control system is added up the exhaust gas volumn information collected, is designated as Q respectively by the exhaust gas volumn of N number of for deduster outlet
1, Q
2..., Q
n, n is natural number, and calculates the exhaust gas volumn mean value Q of the N number of outlet of deduster
aVE, Q
aVE=(Q
1+ Q
2+ ... + Q
n)/n, the unit of exhaust gas volumn is m
3/ h, then enters step B;
C: control system calculates exhaust gas volumn and the exhaust gas volumn mean value Q of each outlet of deduster respectively
aVEthe absolute value of difference and exhaust gas volumn mean value Q
aVEratio, namely | Q
1-Q
aVE|/Q
aVE, | Q
2-Q
aVE|/Q
aVE..., | Q
n-Q
aVE|/Q
aVE, then count step D;
D: control system judges according to the result of calculation in step C, if satisfy condition one, condition one is | Q
1-Q
aVE|/Q
aVE≤ 5 & & | Q
2-Q
aVE|/Q
aVE≤ 5 & & ... & & | Q
n-Q
aVE|/Q
aVE≤ 5, then judge the exhaust gas volumn distributed uniform of each room of deduster, without the need to carrying out flow adjustment; If satisfy condition two, condition two is | Q
1-Q
aVE|/Q
aVE> 5|||Q
2-Q
aVE|/Q
aVE> 5|| ... || | Q
n-Q
aVE|/Q
aVE> 5, then enter step e;
E: control system is to the exhaust gas volumn Q of the N number of outlet of deduster
1, Q
2..., Q
nsort from big to small according to numerical value, and N number of outlet of the deduster corresponding to the exhaust gas volumn after sequence is designated as D in order respectively
max, D
mid1, D
mid2..., D
midn, D
min; N number of outlet D of deduster
max, D
mid1, D
mid2..., D
midn, D
minthe baffle opening of N number of porch of corresponding deduster is respectively P
max, P
mid1, P
mid2..., P
midn, P
min, wherein the scope of baffle opening is 0-100%; Then step F is entered;
F: control system is according to the baffle opening P of N number of porch of the deduster in step e
max, P
mid1, P
mid2..., P
midn, P
minjudge, and to house outlet D
minthe baffle opening P of corresponding entrance
minadjust, if P
min< 100%, then successively increase P with the aperture increment of each 5%
min, after often increasing by the aperture increment of 5%, control module all detects the house outlet D after adjustment according to the Wind volume detector of correspondence
minthe exhaust gas volumn at place returns to step B and step C calculates, and then enters step D and judges, if satisfy condition one, then complete whole flow adjustment process; If satisfy condition two, then continuing to carry out P with the aperture increment of 5%
minadjustment, until adjustment after house outlet D
minthe exhaust gas volumn at place satisfies condition one; If P
minhouse outlet D when being adjusted to 100%
minthe exhaust gas volumn at place still satisfies condition two, then enter step G;
G: control system house outlet D
maxthe baffle opening P of corresponding entrance
maxadjust, successively reduce P with the aperture depreciation of each 5%
max, after often reducing the aperture depreciation of 5%, control module all detects the house outlet D after adjustment according to the Wind volume detector of correspondence
maxthe exhaust gas volumn at place returns to step B and step C calculates, and then enters step D and judges, if satisfy condition one, then complete whole flow adjustment process; If satisfy condition two, then continue to carry out P with the aperture depreciation of 5%
maxadjustment, until adjustment after house outlet D
maxthe exhaust gas volumn at place satisfies condition one, completes whole flow adjustment process.
Thermal power plant's deduster plume airflow balance method of adjustment, comprises the following steps:
A: multiple Wind volume detector gathers the exhaust gas volumn information in exit, deduster each room respectively, and the exhaust gas volumn information collected is sent to control system by distributed control means, then enter step B;
B: control system is added up the exhaust gas volumn information collected, is designated as Q respectively by the exhaust gas volumn of N number of for deduster outlet
1, Q
2..., Q
n, n is natural number, and calculates the exhaust gas volumn mean value Q of the N number of outlet of deduster
aVE, Q
aVE=(Q
1+ Q
2+ ... + Q
n)/n, the unit of exhaust gas volumn is m
3/ h, then enters step B;
C: control system calculates exhaust gas volumn and the exhaust gas volumn mean value Q of each outlet of deduster respectively
aVEthe absolute value of difference and exhaust gas volumn mean value Q
aVEratio, namely | Q
1-Q
aVE|/Q
aVE, | Q
2-Q
aVE|/Q
aVE..., | Q
n-Q
aVE|/Q
aVE, then count step D;
D: control system judges according to the result of calculation in step C, if satisfy condition one, condition one is | Q
1-Q
aVE|/Q
aVE≤ 5 & & | Q
2-Q
aVE|/Q
aVE≤ 5 & & ... & & | Q
n-Q
aVE|/Q
aVE≤ 5, then judge the exhaust gas volumn distributed uniform of each room of deduster, without the need to carrying out flow adjustment; If satisfy condition two, condition two is | Q
1-Q
aVE|/Q
aVE> 5|||Q
2-Q
aVE|/Q
aVE> 5|| ... || | Q
n-Q
aVE|/Q
aVE> 5, then enter step e;
E: control system is to the exhaust gas volumn Q of the N number of outlet of deduster
1, Q
2..., Q
nsort from big to small according to numerical value, and N number of outlet of the deduster corresponding to the exhaust gas volumn after sequence is designated as D in order respectively
max, D
mid1, D
mid2..., D
midn, D
min; N number of outlet D of deduster
max, D
mid1, D
mid2..., D
midn, D
minthe baffle opening of N number of porch of corresponding deduster is respectively P
max, P
mid1, P
mid2..., P
midn, P
min, wherein the scope of baffle opening is 0-100%; Then step F is entered;
F: control system is according to the baffle opening P of N number of porch of the deduster in step e
max, P
mid1, P
mid2..., P
midn, P
minjudge, and to house outlet D
minthe baffle opening P of corresponding entrance
minadjust, if P
min< 100%, then successively increase P with the aperture increment of each 5%
min, after often increasing by the aperture increment of 5%, control module all detects the house outlet D after adjustment according to the Wind volume detector of correspondence
minthe exhaust gas volumn at place returns to step B and step C calculates, and then enters step D and judges, if satisfy condition one, then complete whole flow adjustment process; If satisfy condition two, then continuing to carry out P with the aperture increment of 5%
minadjustment, until adjustment after house outlet D
minthe exhaust gas volumn at place satisfies condition one; If P
minhouse outlet D when being adjusted to 100%
minthe exhaust gas volumn at place still satisfies condition two, then enter step G;
G: control system house outlet D
maxthe baffle opening P of corresponding entrance
maxadjust, successively reduce P with the aperture depreciation of each 5%
max, after often reducing the aperture depreciation of 5%, control module all detects the house outlet D after adjustment according to the Wind volume detector of correspondence
maxthe exhaust gas volumn at place returns to step B and step C calculates, and then enters step D and judges, if satisfy condition one, then complete whole flow adjustment process; If satisfy condition two, then continue to carry out P with the aperture depreciation of 5%
maxadjustment, until adjustment after house outlet D
maxthe exhaust gas volumn at place satisfies condition one, completes whole flow adjustment process.
The present invention utilizes Wind volume detector to detect the exhaust gas volumn information in exit, deduster each room in real time, and pass through control system, the exhaust gas volumn information collected is analyzed, final output control signal controls the flow regulator at each chamber inlet place of deduster respectively, the air quantity that enters of each room of deduster is regulated, the exhaust gas volumn flowing through each compartment can be made substantially identical, overcome flue gas flow between existing deduster different chamber and distribute uneven shortcoming, make the actual torque equilibrium of flue gas flow by each room filter bag and each ash silo pump, the whole efficiency of deduster and the service life of filter bag can be improved, effectively prevent the regional damaging problem that filter bag of dust collector causes because smoke treatment amount deviation is large.
Accompanying drawing explanation
Fig. 1 is the theory diagram of thermal power plant of the present invention deduster plume airflow balance adjustment System.
Detailed description of the invention
As shown in Figure 1, thermal power plant of the present invention deduster plume airflow balance adjustment System, comprises control system, Wind volume detector 1 and flow regulator 3.The exhaust gas volumn information in deduster each room exit of control system for receiving multiple Wind volume detector 1 and collecting, and the exhaust gas volumn information collected is analyzed, then export the flow regulator 3 that control signal controls each chamber inlet place of deduster respectively, the air quantity that enters of each room of deduster is regulated; Wind volume detector 1, for gathering the exhaust gas volumn information in exit, deduster each room, deduster each room outlet is provided with Wind volume detector 1; Flow regulator 3, for regulating the air quantity that enters at each chamber inlet place of deduster, each chamber inlet of deduster is provided with flow regulator 3.The signal output part of multiple Wind volume detector 1 is respectively by the signal input part of distributed control means connection control system, and the signal output part of control system also connects multiple flow regulator 3 respectively by distributed control means.Wind volume detector 1 belongs to ripe existing equipment, can adopt all kinds of air quantity sensing device, adopt multichannel wind trunk measurement mechanism in the present embodiment.In the present embodiment, Wind volume detector 1 adopts welding manner to be fixed on deduster each room outlet inside wall, and the signal output part of Wind volume detector 1 connects the signal input part of distributed control means by transmitter 2.Flow regulator 3 adopts controllable register, and controllable register is fixed in each chamber inlet flue of deduster by stationary links, and the signal input part of flow regulator 3 connects the signal output part of point distributed control means by transmitter 2.
Thermal power plant of the present invention deduster plume airflow balance method of adjustment, is characterized in that, comprise the following steps:
A: multiple Wind volume detector 1 gathers the exhaust gas volumn information in exit, deduster each room respectively, and the exhaust gas volumn information collected is sent to control system by distributed control means, then enters step B;
B: control system is added up the exhaust gas volumn information collected, is designated as Q respectively by the exhaust gas volumn of N number of for deduster outlet
1, Q
2..., Q
n, n is natural number, and calculates the exhaust gas volumn mean value Q of the N number of outlet of deduster
aVE, Q
aVE=(Q
1+ Q
2+ ... + Q
n)/n, the unit of exhaust gas volumn is m
3/ h, then enters step C;
C: control system calculates exhaust gas volumn and the exhaust gas volumn mean value Q of each outlet of deduster respectively
aVEthe absolute value of difference and exhaust gas volumn mean value Q
aVEratio, namely | Q
1-Q
aVE|/Q
aVE, | Q
2-Q
aVE|/Q
aVE..., | Q
n-Q
aVE|/Q
aVE, then count step D;
D: control system judges according to the result of calculation in step C, if satisfy condition one, condition one is | Q
1-Q
aVE|/Q
aVE≤ 5 & & | Q
2-Q
aVE|/Q
aVE≤ 5 & & ... & & | Q
n-Q
aVE|/Q
aVE≤ 5, then judge the exhaust gas volumn distributed uniform of each room of deduster, without the need to carrying out flow adjustment; If satisfy condition two, condition two is | Q
1-Q
aVE|/Q
aVE> 5|||Q
2-Q
aVE|/Q
aVE> 5|| ... || | Q
n-Q
aVE|/Q
aVE> 5, then enter step e;
E: control system is to the exhaust gas volumn Q of the N number of outlet of deduster
1, Q
2..., Q
nsort from big to small according to numerical value, and N number of outlet of the deduster corresponding to the exhaust gas volumn after sequence is designated as D in order respectively
max, D
mid1, D
mid2..., D
midn, D
min; N number of outlet D of deduster
max, D
mid1, D
mid2..., D
midn, D
minthe baffle opening of N number of porch of corresponding deduster is respectively P
max, P
mid1, P
mid2..., P
midn, P
min, wherein the scope of baffle opening is 0-100%; Then step F is entered;
F: control system is according to the baffle opening P of N number of porch of the deduster in step e
max, P
mid1, P
mid2..., P
midn, P
minjudge, and to house outlet D
minthe baffle opening P of corresponding entrance
minadjust, if P
min< 100%, then successively increase P with the aperture increment of each 5%
min, after often increasing by the aperture increment of 5%, control module all detects the house outlet D after adjustment according to the Wind volume detector 1 of correspondence
minthe exhaust gas volumn at place returns to step B and step C calculates, and then enters step D and judges, if satisfy condition one, then complete whole flow adjustment process; If satisfy condition two, then continuing to carry out P with the aperture increment of 5%
minadjustment, until adjustment after house outlet D
minthe exhaust gas volumn at place satisfies condition one; If P
minhouse outlet D when being adjusted to 100%
minthe exhaust gas volumn at place still satisfies condition two, then enter step G;
G: control system house outlet D
maxthe baffle opening P of corresponding entrance
maxadjust, successively reduce P with the aperture depreciation of each 5%
max, after often reducing the aperture depreciation of 5%, control module all detects the house outlet D after adjustment according to the Wind volume detector 1 of correspondence
maxthe exhaust gas volumn at place returns to step B and step C calculates, and then enters step D and judges, if satisfy condition one, then complete whole flow adjustment process; If satisfy condition two, then continue to carry out P with the aperture depreciation of 5%
maxadjustment, until adjustment after house outlet D
maxthe exhaust gas volumn at place satisfies condition one, completes whole flow adjustment process.
The duster system arranged below in conjunction with Room 4 is that example is described:
A:4 Wind volume detector 1 gathers the exhaust gas volumn information in exit, deduster 4 Room respectively, and the exhaust gas volumn information collected is sent to control system by distributed control means, then enters step B;
B: control system is added up the exhaust gas volumn information collected, is designated as Q respectively by the exhaust gas volumn that deduster 4 exports
1, Q
2, Q
3, Q
4, and calculate the exhaust gas volumn mean value Q of deduster 4 outlet
aVE, Q
aVE=(Q
1+ Q
2+ Q
3+ Q
4)/4, the unit of exhaust gas volumn is m
3/ h, then enters step C;
C: control system calculates exhaust gas volumn and the exhaust gas volumn mean value Q of each outlet of deduster respectively
aVEthe absolute value of difference and exhaust gas volumn mean value Q
aVEratio, namely | Q
1-Q
aVE|/Q
aVE, | Q
2-Q
aVE|/Q
aVE, | Q
3-Q
aVE|/Q
aVE, | Q
4-Q
aVE|/Q
aVE, then count step D;
D: control system judges according to the result of calculation in step C, if satisfy condition one, condition one is | Q
1-Q
aVE|/Q
aVE≤ 5 & & | Q
2-Q
aVE|/Q
aVE≤ 5 & & | Q
3-Q
aVE|/Q
aVE≤ 5 & & | Q
4-Q
aVE|/Q
aVE≤ 5, then judge the exhaust gas volumn distributed uniform of each room of deduster, without the need to carrying out flow adjustment; If satisfy condition two, condition two is | Q
1-Q
aVE|/Q
aVE> 5|||Q
2-Q
aVE|/Q
aVE> 5|||Q
3-Q
aVE|/Q
aVE> 5|||Q
4-Q
aVE|/Q
aVE> 5, then enter step e;
E: control system is to the exhaust gas volumn Q of the N number of outlet of deduster
1, Q
2, Q
3, Q
4sort from big to small according to numerical value, in this embodiment, Q
2>Q
1>Q
4>Q
3, and 4 outlets of the deduster corresponding to the exhaust gas volumn after sequence are designated as D in order respectively
max, D
mid1, D
mid2, D
min, now D
maxcorresponding deduster the 2nd outlet, D
mid1corresponding deduster the 1st outlet, D
mid2corresponding deduster the 4th outlet, D
mincorresponding deduster the 3rd outlet; 4 outlet D of deduster
max, D
mid1, D
mid2, D
minthe baffle opening of 4 porch of corresponding deduster is respectively P
max, P
mid1, P
mid2, P
min, now P
maxcorresponding deduster the 2nd entrance, P
mid1corresponding deduster the 1st entrance, P
mid2corresponding deduster the 4th entrance, P
mincorresponding deduster the 3rd entrance, wherein the scope of baffle opening is 0-100%; Then step F is entered;
F: control system is according to the baffle opening P of 4 of the deduster in step e porch
max, P
mid1, P
mid2, P
minjudge, and to house outlet D
minthe baffle opening P of the entrance corresponding to (deduster the 3rd outlet)
minadjust, if P
min< 100%, then successively increase P with the aperture increment of each 5%
min, after often increasing by the aperture increment of 5%, control module all detects the house outlet D after adjustment according to the Wind volume detector 1 of correspondence
minthe exhaust gas volumn at (deduster the 3rd outlet) place returns to step B and step C calculates, and then enters step D and judges, if satisfy condition one, then complete whole flow adjustment process; If satisfy condition two, then continuing to carry out P with the aperture increment of 5%
minadjustment, until adjustment after house outlet D
minthe exhaust gas volumn at (deduster the 3rd outlet) place satisfies condition one; If P
minhouse outlet D when being adjusted to 100%
minthe exhaust gas volumn at (deduster the 3rd outlet) place still satisfies condition two, then enter step G;
G: control system house outlet D
maxthe baffle opening P of the entrance corresponding to (deduster the 2nd outlet)
maxadjust, successively reduce P with the aperture depreciation of each 5%
max, after often reducing the aperture depreciation of 5%, control module all detects the house outlet D after adjustment according to the Wind volume detector 1 of correspondence
maxthe exhaust gas volumn at (deduster the 2nd outlet) place returns to step B and step C calculates, and then enters step D and judges, if satisfy condition one, then complete whole flow adjustment process; If satisfy condition two, then continue to carry out P with the aperture depreciation of 5%
maxadjustment, until adjustment after house outlet D
maxthe exhaust gas volumn at (deduster the 2nd outlet) place satisfies condition one, completes whole flow adjustment process.
Above-mentioned method of adjustment can autobalance adjustment deduster different chamber between flue gas flow, make the exhaust gas volumn flowing through each compartment substantially identical, overcome flue gas flow between existing deduster different chamber and distribute uneven shortcoming, make the actual torque equilibrium of flue gas flow by each room filter bag and each ash silo pump, the whole efficiency of deduster and the service life of filter bag can be improved, effectively prevent the regional damaging problem that filter bag of dust collector causes because smoke treatment amount deviation is large.
Claims (5)
1. thermal power plant's deduster plume airflow balance adjustment System, is characterized in that: comprise
Control system, for receiving the exhaust gas volumn information in the exit, deduster each room that multiple Wind volume detector collects, and the exhaust gas volumn information collected is analyzed, then export the flow regulator that control signal controls each chamber inlet place of deduster respectively, the air quantity that enters of each room of deduster is regulated;
Wind volume detector, for gathering the exhaust gas volumn information in exit, deduster each room, deduster each room outlet is provided with Wind volume detector;
Flow regulator, for regulating the air quantity that enters at each chamber inlet place of deduster, each chamber inlet of deduster is provided with flow regulator;
The signal output part of multiple Wind volume detector is respectively by the signal input part of distributed control means connection control system, and the signal output part of control system also connects multiple flow regulator respectively by distributed control means.
2. thermal power plant according to claim 1 deduster plume airflow balance adjustment System, it is characterized in that: described Wind volume detector adopts multichannel wind trunk measurement mechanism, Wind volume detector adopts welding manner to be fixed on deduster each room outlet inside wall, and the signal output part of Wind volume detector connects the signal input part of distributed control means by transmitter.
3. thermal power plant according to claim 1 and 2 deduster plume airflow balance adjustment System, it is characterized in that: described flow regulator adopts controllable register, controllable register is fixed in each chamber inlet flue of deduster by stationary links, and the signal input part of flow regulator connects the signal output part of point distributed control means by transmitter.
4. thermal power plant according to claim 3 deduster plume airflow balance adjustment System, it is characterized in that, described control system performs following method and carries out the adjustment of plume airflow balance:
A: multiple Wind volume detector gathers the exhaust gas volumn information in exit, deduster each room respectively, and the exhaust gas volumn information collected is sent to control system by distributed control means, then enter step B;
B: control system is added up the exhaust gas volumn information collected, is designated as Q respectively by the exhaust gas volumn of N number of for deduster outlet
1, Q
2..., Q
n, n is natural number, and calculates the exhaust gas volumn mean value Q of the N number of outlet of deduster
aVE, Q
aVE=(Q
1+ Q
2+ ... + Q
n)/n, the unit of exhaust gas volumn is m
3/ h, then enters step C;
C: control system calculates exhaust gas volumn and the exhaust gas volumn mean value Q of each outlet of deduster respectively
aVEthe absolute value of difference and exhaust gas volumn mean value Q
aVEratio, namely | Q
1-Q
aVE|/Q
aVE, | Q
2-Q
aVE|/Q
aVE..., | Q
n-Q
aVE|/Q
aVE, then count step D;
D: control system judges according to the result of calculation in step C, if satisfy condition one, condition one is | Q
1-Q
aVE|/Q
aVE≤ 5 & & | Q
2-Q
aVE|/Q
aVE≤ 5 & & ... & & | Q
n-Q
aVE|/Q
aVE≤ 5, then judge the exhaust gas volumn distributed uniform of each room of deduster, without the need to carrying out flow adjustment; If satisfy condition two, condition two is | Q
1-Q
aVE|/Q
aVE> 5|||Q
2-Q
aVE|/Q
aVE> 5|| ... || | Q
n-Q
aVE|/Q
aVE> 5, then enter step e;
E: control system is to the exhaust gas volumn Q of the N number of outlet of deduster
1, Q
2..., Q
nsort from big to small according to numerical value, and N number of outlet of the deduster corresponding to the exhaust gas volumn after sequence is designated as D in order respectively
max, D
mid1, D
mid2..., D
midn, D
min; N number of outlet D of deduster
max, D
mid1, D
mid2..., D
midn, D
minthe baffle opening of N number of porch of corresponding deduster is respectively P
max, P
mid1, P
mid2..., P
midn, P
min, wherein the scope of baffle opening is 0-100%; Then step F is entered;
F: control system is according to the baffle opening P of N number of porch of the deduster in step e
max, P
mid1, P
mid2..., P
midn, P
minjudge, and to house outlet D
minthe baffle opening P of corresponding entrance
minadjust, if P
min< 100%, then successively increase P with the aperture increment of each 5%
min, after often increasing by the aperture increment of 5%, control module all detects the house outlet D after adjustment according to the Wind volume detector of correspondence
minthe exhaust gas volumn at place returns to step B and step C calculates, and then enters step D and judges, if satisfy condition one, then complete whole flow adjustment process; If satisfy condition two, then continuing to carry out P with the aperture increment of 5%
minadjustment, until adjustment after house outlet D
minthe exhaust gas volumn at place satisfies condition one; If P
minhouse outlet D when being adjusted to 100%
minthe exhaust gas volumn at place still satisfies condition two, then enter step G;
G: control system house outlet D
maxthe baffle opening P of corresponding entrance
maxadjust, successively reduce P with the aperture depreciation of each 5%
max, after often reducing the aperture depreciation of 5%, control module all detects the house outlet D after adjustment according to the Wind volume detector of correspondence
maxthe exhaust gas volumn at place returns to step B and step C calculates, and then enters step D and judges, if satisfy condition one, then complete whole flow adjustment process; If satisfy condition two, then continue to carry out P with the aperture depreciation of 5%
maxadjustment, until adjustment after house outlet D
maxthe exhaust gas volumn at place satisfies condition one, completes whole flow adjustment process.
5. thermal power plant's deduster plume airflow balance method of adjustment, is characterized in that, comprise the following steps:
A: multiple Wind volume detector gathers the exhaust gas volumn information in exit, deduster each room respectively, and the exhaust gas volumn information collected is sent to control system by distributed control means, then enter step B;
B: control system is added up the exhaust gas volumn information collected, is designated as Q respectively by the exhaust gas volumn of N number of for deduster outlet
1, Q
2..., Q
n, n is natural number, and calculates the exhaust gas volumn mean value Q of the N number of outlet of deduster
aVE, Q
aVE=(Q
1+ Q
2+ ... + Q
n)/n, the unit of exhaust gas volumn is m
3/ h, then enters step C;
C: control system calculates exhaust gas volumn and the exhaust gas volumn mean value Q of each outlet of deduster respectively
aVEthe absolute value of difference and exhaust gas volumn mean value Q
aVEratio, namely | Q
1-Q
aVE|/Q
aVE, | Q
2-Q
aVE|/Q
aVE..., | Q
n-Q
aVE|/Q
aVE, then count step D;
D: control system judges according to the result of calculation in step C, if satisfy condition one, condition one is | Q
1-Q
aVE|/Q
aVE≤ 5 & & | Q
2-Q
aVE|/Q
aVE≤ 5 & & ... & & | Q
n-Q
aVE|/Q
aVE≤ 5, then judge the exhaust gas volumn distributed uniform of each room of deduster, without the need to carrying out flow adjustment; If satisfy condition two, condition two is | Q
1-Q
aVE|/Q
aVE> 5|||Q
2-Q
aVE|/Q
aVE> 5|| ... || | Q
n-Q
aVE|/Q
aVE> 5, then enter step e;
E: control system is to the exhaust gas volumn Q of the N number of outlet of deduster
1, Q
2..., Q
nsort from big to small according to numerical value, and N number of outlet of the deduster corresponding to the exhaust gas volumn after sequence is designated as D in order respectively
max, D
mid1, D
mid2..., D
midn, D
min; N number of outlet D of deduster
max, D
mid1, D
mid2..., D
midn, D
minthe baffle opening of N number of porch of corresponding deduster is respectively P
max, P
mid1, P
mid2..., P
midn, P
min, wherein the scope of baffle opening is 0-100%; Then step F is entered;
F: control system is according to the baffle opening P of N number of porch of the deduster in step e
max, P
mid1, P
mid2..., P
midn, P
minjudge, and to house outlet D
minthe baffle opening P of corresponding entrance
minadjust, if P
min< 100%, then successively increase P with the aperture increment of each 5%
min, after often increasing by the aperture increment of 5%, control module all detects the house outlet D after adjustment according to the Wind volume detector of correspondence
minthe exhaust gas volumn at place returns to step B and step C calculates, and then enters step D and judges, if satisfy condition one, then complete whole flow adjustment process; If satisfy condition two, then continuing to carry out P with the aperture increment of 5%
minadjustment, until adjustment after house outlet D
minthe exhaust gas volumn at place satisfies condition one; If P
minhouse outlet D when being adjusted to 100%
minthe exhaust gas volumn at place still satisfies condition two, then enter step G;
G: control system house outlet D
maxthe baffle opening P of corresponding entrance
maxadjust, successively reduce P with the aperture depreciation of each 5%
max, after often reducing the aperture depreciation of 5%, control module all detects the house outlet D after adjustment according to the Wind volume detector of correspondence
maxthe exhaust gas volumn at place returns to step B and step C calculates, and then enters step D and judges, if satisfy condition one, then complete whole flow adjustment process; If satisfy condition two, then continue to carry out P with the aperture depreciation of 5%
maxadjustment, until adjustment after house outlet D
maxthe exhaust gas volumn at place satisfies condition one, completes whole flow adjustment process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510064860.6A CN104645734B (en) | 2015-02-06 | 2015-02-06 | Thermal power plant's cleaner unit plume airflow balance adjusts system and method for adjustment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510064860.6A CN104645734B (en) | 2015-02-06 | 2015-02-06 | Thermal power plant's cleaner unit plume airflow balance adjusts system and method for adjustment |
Publications (2)
| Publication Number | Publication Date |
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| CN104645734A true CN104645734A (en) | 2015-05-27 |
| CN104645734B CN104645734B (en) | 2016-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109157921A (en) * | 2018-08-29 | 2019-01-08 | 无锡雪浪环境科技股份有限公司 | A kind of flue gas storage device and its application method |
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| CN201445866U (en) * | 2009-06-15 | 2010-05-05 | 国电南京自动化股份有限公司 | Flow equalizing flame-proof cloth bag dust catcher |
| JP2011007193A (en) * | 2010-07-26 | 2011-01-13 | Nippon Muki Co Ltd | Intake air filter unit for gas turbine |
| CN102475999A (en) * | 2010-11-23 | 2012-05-30 | 大连兆阳软件科技有限公司 | High-temperature fume controlling equipment |
| CN102600679A (en) * | 2012-03-17 | 2012-07-25 | 苏州宇洋环保设备制造有限公司 | Air inlet distribution device for cloth bag dust remover |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201445866U (en) * | 2009-06-15 | 2010-05-05 | 国电南京自动化股份有限公司 | Flow equalizing flame-proof cloth bag dust catcher |
| JP2011007193A (en) * | 2010-07-26 | 2011-01-13 | Nippon Muki Co Ltd | Intake air filter unit for gas turbine |
| CN102475999A (en) * | 2010-11-23 | 2012-05-30 | 大连兆阳软件科技有限公司 | High-temperature fume controlling equipment |
| CN102600679A (en) * | 2012-03-17 | 2012-07-25 | 苏州宇洋环保设备制造有限公司 | Air inlet distribution device for cloth bag dust remover |
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| CN109157921A (en) * | 2018-08-29 | 2019-01-08 | 无锡雪浪环境科技股份有限公司 | A kind of flue gas storage device and its application method |
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|---|---|
| CN104645734B (en) | 2016-08-17 |
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Address after: 450052 No. 85 South Songshan Road, 27 District, Henan, Zhengzhou Co-patentee after: Henan jiuyu enpai Power Technology Co., Ltd Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID HENAN ELECTRIC POWER Co. Co-patentee after: State Grid Corporation of China Address before: 450052 No. 85 South Songshan Road, 27 District, Henan, Zhengzhou Co-patentee before: HENAN ENPAI HIGH-TECH GROUP Co.,Ltd. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID HENAN ELECTRIC POWER Co. Co-patentee before: State Grid Corporation of China |