CN105330128A - Balancing method for waste heat power generation of flat glass furnace and melting furnace fuel using amount - Google Patents
Balancing method for waste heat power generation of flat glass furnace and melting furnace fuel using amount Download PDFInfo
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- CN105330128A CN105330128A CN201510876518.6A CN201510876518A CN105330128A CN 105330128 A CN105330128 A CN 105330128A CN 201510876518 A CN201510876518 A CN 201510876518A CN 105330128 A CN105330128 A CN 105330128A
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Abstract
The invention discloses a balancing method for waste heat power generation of a flat glass furnace and the melting furnace fuel using amount. The method comprises the steps that the fire conversion time is set for 10-20 min and set to be adjustable; an initial value of the fire conversion time is set for 20 min, and after a melting furnace operates stably, the stable temperature T1 of the melting furnace and the stable temperature T2 of flue gas are recorded; the fire conversion time is shortened, and after the melting furnace operates stably, the temperature T3 of the melting furnace is detected; the temperature difference delta T=T3-T1, the temperature of the flue gas is measured in the technological permissible range, and the total flue gas amount is calculated; a waste heat power generation system is started, whether the power generation and the additionally-increased fuel using amount is balanced or not is judged, the fuel using amount and the fire conversion time are recorded, and flat glass production and waste heat power generation are performed according to the balanced parameters; the fire conversion time is gradually shortened, the temperature and the total amount of the flue gas are increased, and comparative analysis is performed on the power generation and the additionally-increased melting furnace fuel using amount until the power generation and the additionally-increased melting furnace fuel using amount are balanced. Accordingly, on one hand, normal operation of the flat glass furnace is guaranteed, and on the other hand, it is guaranteed that the flue gas waste heat can generate power in the permissible range.
Description
Technical field
The present invention relates to sheet glass cogeneration field, specifically the balance method of the cogeneration of a kind of sheet glass kiln and melting furnaces firing rate.
Background technology
In sheet glass is produced, this becomes trend to utilize melting furnaces flue gas to carry out cogeneration.At present, generally, in the regenerator both sides of melting furnaces, flue is set respectively, the regenerator of side passes into combustion-supporting air, opposite side regenerator discharges flue gas simultaneously, flue is provided with flue shutter, carried out the switching of air and flue gas by the open and close of both sides flue shutter, realize both sides one after the other air inlet and smoke evacuation, the interval switched in turn is referred to as changes the fire time.At present, no matter be 600 tons and following melting furnaces, or 900 tons and above melting furnaces, changing the fire time is all 20 minutes; But for 600 tons and following melting furnaces, within 20 minutes, change the fire fume afterheat that produces of time and be not enough to generate electricity; If by increase a little melting furnaces firing rate method to improve flue-gas temperature, fume afterheat can be generated electricity, between cogeneration and melting furnaces firing rate, finds balance just to become particularly important.
Summary of the invention
The object of the present invention is to provide the balance method of the cogeneration of a kind of sheet glass kiln and melting furnaces firing rate, the method can obtain the trim point of cogeneration and melting furnaces firing rate, determine new to change the fire time, guarantee the normal operation of sheet glass kiln on the one hand, in allowed band, ensure that fume afterheat can generate electricity on the other hand.
The technical solution adopted for the present invention to solve the technical problems is:
A balance method for the cogeneration of sheet glass kiln and melting furnaces firing rate, comprises the following steps:
A) changing the fire time, to be set to 10 ~ 20min adjustable;
B) initial value changing the fire time is set to 20min, after melting furnaces are stable, record melting furnaces equilibrium temperature T1 and flue gas equilibrium temperature T2;
C) the fire time is changed in minimizing;
D) after melting furnaces are stable, melting furnace temperature T3 is detected;
E) by the melting furnace temperature T3 in steps d compared with the melting furnaces equilibrium temperature T1 in step b, obtain temperature difference T=T3-T1, if temperature difference T is in technique allowed band, so carry out step f, if temperature difference T is not in technique allowed band, so reduce firing rate according to the temperature difference and repeat steps d ~ e, until temperature difference T is in technique allowed band;
F) measure flue-gas temperature, and calculate amount of flue gas emission;
G) judge whether to meet power generation requirements according to flue-gas temperature and amount of flue gas emission, if meet, carry out step h, if do not meet, repeating step c ~ g, until flue-gas temperature and amount of flue gas emission meet power generation needs;
H) start afterheat generating system, after power generation system is stable, detects generated energy;
I) judge whether balance between generated energy and the firing rate additionally increased, if reach balance, carry out step j, if imbalance, repeating step c ~ i, until reach balance between generated energy and firing rate;
J) record firing rate and change the fire time, and carrying out sheet glass production and cogeneration by parameter during balance.
The invention has the beneficial effects as follows, the fire time is changed by gradually reducing, improve flue-gas temperature and amount of flue gas emission, and generated energy and the melting furnaces firing rate additionally increased are compared, until reach balance therebetween, guarantee the normal operation of sheet glass kiln on the one hand, in allowed band, ensure that fume afterheat can generate electricity on the other hand.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is schema of the present invention.
Embodiment
As shown in Figure 1, the invention provides the balance method of a kind of sheet glass kiln cogeneration amount and melting furnaces firing rate, comprise the following steps:
A) changing the fire time, to be set to 10 ~ 20min adjustable;
B) initial value changing the fire time is set to 20min, after melting furnaces are stable, record melting furnaces equilibrium temperature T1 and flue gas equilibrium temperature T2;
C) reduce and change the fire time, can gradually reduce and change the fire time, such as, reduce 10s at every turn, 10min≤change fire time≤20min;
D) after melting furnaces are stable, melting furnace temperature T3 is detected;
E) by the melting furnace temperature T3 in steps d compared with the melting furnaces equilibrium temperature T1 in step b, obtain temperature difference T=T3-T1, if temperature difference T is in technique allowed band, such as 10 DEG C, so carry out step f, if temperature difference T is not in technique allowed band, so reduces firing rate according to the temperature difference and repeat steps d ~ e, until temperature difference T is in technique allowed band;
F) measure flue-gas temperature, and calculate amount of flue gas emission;
G) judge whether to meet power generation requirements according to flue-gas temperature and amount of flue gas emission, if meet, carry out step h, if do not meet, repeating step c ~ g, until flue-gas temperature and amount of flue gas emission meet power generation needs;
H) start afterheat generating system, after power generation system is stable, detects generated energy;
I) judge whether balance between generated energy and the firing rate additionally increased, if reach balance, carry out step j, if imbalance, repeating step c ~ i, until reach balance between generated energy and firing rate;
J) record firing rate and change the fire time, and carrying out sheet glass production and cogeneration by parameter during balance.
The fire time is changed by gradually reducing, improve flue-gas temperature and amount of flue gas emission, and generated energy and the melting furnaces firing rate additionally increased are compared, until reach balance therebetween, guarantee the normal operation of sheet glass kiln on the one hand, in allowed band, ensure that fume afterheat can generate electricity on the other hand.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention; Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent replacement, equivalence change and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (1)
1. a balance method for the cogeneration of sheet glass kiln and melting furnaces firing rate, is characterized in that, said method comprising the steps of:
A) changing the fire time, to be set to 10 ~ 20min adjustable;
B) initial value changing the fire time is set to 20min, after melting furnaces are stable, record melting furnaces equilibrium temperature T1 and flue gas equilibrium temperature T2;
C) the fire time is changed in minimizing;
D) after melting furnaces are stable, melting furnace temperature T3 is detected;
E) by the melting furnace temperature T3 in steps d compared with the melting furnaces equilibrium temperature T1 in step b, obtain temperature difference T=T3-T1, if temperature difference T is in technique allowed band, so carry out step f, if temperature difference T is not in technique allowed band, so reduce firing rate according to the temperature difference and repeat steps d ~ e, until temperature difference T is in technique allowed band;
F) measure flue-gas temperature, and calculate amount of flue gas emission;
G) judge whether to meet power generation requirements according to flue-gas temperature and amount of flue gas emission, if meet, carry out step h, if do not meet, repeating step c ~ g, until flue-gas temperature and amount of flue gas emission meet power generation needs;
H) start afterheat generating system, after power generation system is stable, detects generated energy;
I) judge whether balance between generated energy and the firing rate additionally increased, if reach balance, carry out step j, if imbalance, repeating step c ~ i, until reach balance between generated energy and firing rate;
J) record firing rate and change the fire time, and carrying out sheet glass production and cogeneration by parameter during balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510876518.6A CN105330128B (en) | 2015-12-03 | 2015-12-03 | A kind of plate glass kiln cogeneration and the balance method of melting furnaces firing rate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510876518.6A CN105330128B (en) | 2015-12-03 | 2015-12-03 | A kind of plate glass kiln cogeneration and the balance method of melting furnaces firing rate |
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| Publication Number | Publication Date |
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| CN105330128A true CN105330128A (en) | 2016-02-17 |
| CN105330128B CN105330128B (en) | 2017-08-04 |
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| CN201510876518.6A Active CN105330128B (en) | 2015-12-03 | 2015-12-03 | A kind of plate glass kiln cogeneration and the balance method of melting furnaces firing rate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188935A (en) * | 2018-07-10 | 2019-01-11 | 长沙国通电力科技有限公司 | A kind of low pressure overbottom pressure cogeneration machine unit automatic generation method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3912485A (en) * | 1973-10-19 | 1975-10-14 | Libbey Owens Ford Co | Glass melting furnace and method of operation |
| CN101012935A (en) * | 2007-02-06 | 2007-08-08 | 顾向涛 | Inverting time control method for heat accumulation type burner |
| CN103214160A (en) * | 2012-01-18 | 2013-07-24 | 蚌埠玻璃工业设计研究院 | Method for determination of reversal time of sheet glass melting furnace |
-
2015
- 2015-12-03 CN CN201510876518.6A patent/CN105330128B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3912485A (en) * | 1973-10-19 | 1975-10-14 | Libbey Owens Ford Co | Glass melting furnace and method of operation |
| CN101012935A (en) * | 2007-02-06 | 2007-08-08 | 顾向涛 | Inverting time control method for heat accumulation type burner |
| CN103214160A (en) * | 2012-01-18 | 2013-07-24 | 蚌埠玻璃工业设计研究院 | Method for determination of reversal time of sheet glass melting furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188935A (en) * | 2018-07-10 | 2019-01-11 | 长沙国通电力科技有限公司 | A kind of low pressure overbottom pressure cogeneration machine unit automatic generation method and system |
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| CN105330128B (en) | 2017-08-04 |
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