KR20000020505A - O2 supply control device of glass melting duct - Google Patents

O2 supply control device of glass melting duct Download PDF

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Publication number
KR20000020505A
KR20000020505A KR1019980039124A KR19980039124A KR20000020505A KR 20000020505 A KR20000020505 A KR 20000020505A KR 1019980039124 A KR1019980039124 A KR 1019980039124A KR 19980039124 A KR19980039124 A KR 19980039124A KR 20000020505 A KR20000020505 A KR 20000020505A
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South Korea
Prior art keywords
humidity
sensor
supply
duct
combustion
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KR1019980039124A
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Korean (ko)
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박병극
박재선
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박영구
삼성코닝 주식회사
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Priority to KR1019980039124A priority Critical patent/KR20000020505A/en
Publication of KR20000020505A publication Critical patent/KR20000020505A/en

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/235—Heating the glass
    • C03B5/2353—Heating the glass by combustion with pure oxygen or oxygen-enriched air, e.g. using oxy-fuel burners or oxygen lances
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Furnace Details (AREA)

Abstract

PURPOSE: A device controlling O2 volume of a 2nd air supplied inside according to the change of outer humidity to prevent instability of melting duct and promoting complete combustion of oil. CONSTITUTION: The device comprises: humidity sensor(12) to measure humidity of 2nd air for combustion into glass melting duct(10), a device(18) to measure volume of 2nd air located in the lower part of the humidity sensor, an O2 sensor(16) to measure O2 density in the lower part of the humidity sensor and in the duct for supply of 2nd air, and an O2 supply device(14) to supply O2, if output of humidity sensor is not reached set point, which is between the O2 sensor and the humidity sensor and in the upper part of duct than the O2 sensor and to lessen total combustion ratio by reducing the volume of combustion air into duct which is the same with O2 addition volume.

Description

유리용해로의 산소공급 제어장치Oxygen Supply Control Device for Glass Melting Furnace

본 발명은 유리제품 제조용 용해로의 O2공급 제어장치에 관한 것으로써, 특히, 외기의 습도변화에 따라 용해로 내부로 공급되는 2차공기의 O2량을 제어하는 장치에 관한 것이다.The present invention relates to a control apparatus for supplying O 2 to a melting furnace for manufacturing a glass product, and more particularly, to an apparatus for controlling the amount of O 2 of secondary air supplied into a melting furnace according to a change in humidity of outside air.

축열실을 사용하는 유리용해로에서는 연소배출가스를 축열실을 통과시켜 축열(煉瓦)에 열을 흡수시키고, 그 후에 연소방향의 교환시 고온으로된 축열실에 연소용 2차공기를 통과시킴으로써 연소공기의 예열 및 폐열회수를 수행한다.In the glass melting furnace using the heat storage chamber, combustion exhaust gas is passed through the heat storage chamber to absorb heat in the heat storage, and thereafter, combustion air is passed through the heat storage chamber which has become hot at the time of exchange in the combustion direction. Preheat and waste heat recovery is performed.

이러한 용해로에 의해 생산되는 유리제품의 품질을 높이기 위해서는 용해로의 운행상황을 안정되게 유지하는 것이 필수적인 요건이 된다. 이러한 안정조업에 방해가 되는 요인으로는 대기의 온도 및 습도변화에 따라 2차공기의 온도 및 습도가 변화하게 되어 용해로 내의 온도에 영향을 미치게 되는 것이다.In order to improve the quality of the glass products produced by these furnaces, it is essential to keep the furnace operating stable. The obstacles to this stable operation is that the temperature and humidity of the secondary air is changed according to the change in the temperature and humidity of the atmosphere affects the temperature in the furnace.

온도변화에 따른 영향을 최소화하기 위해서는, 대기의 온도변화에 따라, 열교환기를 통과한 공기와 대기온도와의 혼합비율을 제어하는 장치를 채용함으로서 2차공기 온도를 안정적으로 제어하는 방법이 공지되어 있으며; 습도변화에 따른 영향을 최소화하기 위해서는, 대기의 습도변화에 따라 2차공기에 수분을 공급하는 가습기를 채용하여 2차공기의 습도를 일정하게 유지하는 장치가 일본특허공개평8-268724호에 개시되어 있다.In order to minimize the effect of the temperature change, a method of stably controlling the secondary air temperature by adopting a device for controlling the mixing ratio between the air passing through the heat exchanger and the atmospheric temperature according to the change in the temperature of the atmosphere is known. ; In order to minimize the effects of humidity changes, a device for maintaining a constant humidity of the secondary air by employing a humidifier for supplying moisture to the secondary air according to the change in the humidity of the atmosphere is disclosed in Japanese Patent Laid-Open No. 8-268724. It is.

그러나, 이와같이 가습기를 이용하여 습도를 일정하게 유지하는 장치를 사용하는 경우에는 연소공기의 수분을 높여주는 결과를 야기하게 되어 연소공기용 덕트와 내화물을 침식시키는 악영향을 초래하게 된다. 또한, 동절기에는 온도와 습도가 같이 낮아져 가습되는 스팀의 양을 어느정도 이상 공급하면 결로현상이 발생하게 되어 공급하는 스팀의 양이 제한적일 수 밖에 없게 된다. 이러한 문제를 해결하기 위해서는 스팀을 가열해주기 위한 보온용 스팀배관을 별도로 설치해야 하는 등 구조가 복잡해지는 문제점이 있다.However, in the case of using a device that maintains a constant humidity by using a humidifier as described above, the moisture of combustion air is increased, resulting in a bad effect of eroding combustion air ducts and refractory materials. In addition, in winter, when the temperature and humidity are lowered together, supplying more than a certain amount of humidified steam causes condensation to occur, thereby limiting the amount of supplied steam. In order to solve this problem, there is a problem in that the structure is complicated, such as the need to install a separate steam pipe for heating the steam.

본 발명의 목적은 전술된 바와같은 종래기술의 문제점을 해결하기 위한 것으로서, 스팀의 공급으로 인한 수분의 증가에 따른 덕트 및 내화물의 침식 문제를 해결할 수있는 용해로 O2공급 제어장치를 제공하는데 있다.An object of the present invention is to solve the problems of the prior art as described above, to provide a furnace O 2 supply control device that can solve the problem of erosion of the duct and refractory caused by the increase of moisture due to the supply of steam.

본 발명의 또다른 목적은 대기의 습도변화에 따라 용해로내에 공급되는 2차공기에 O2의 공급량을 제어함으로써 오일의 열효율을 일정하게 유지시켜 용해로를 안정되게 유지할 수 있는 용해로 O2공급 제어장치를 제공하는데 있다.Another object of the present invention is to control the supply of O 2 to the secondary air supplied to the furnace in accordance with the change in humidity of the atmosphere by maintaining the thermal efficiency of the oil to maintain a stable furnace O 2 supply control device To provide.

도 1 은 본 발명에 따른 용해로 2차공기 O2공급 제어장치의 개략적 구성을도시하는 도면.1 is a view showing a schematic configuration of a furnace secondary air O 2 supply control device according to the present invention.

도 2 는 본 발명에 따른 용해로 2차공기 O2공급 제어장치의 제어 루프를 보여주는 플로우 차트Figure 2 is a flow chart showing the control loop of the furnace secondary air O 2 supply control device according to the present invention

◎도면의 주요부분에 대한 부호의 설명 ◎◎ Description of symbols for the main parts of the drawings ◎

10 : 덕트 12 : 습도센서10: duct 12: humidity sensor

14 : O2공급장치 16 : O2센서14: O 2 supply device 16: O 2 sensor

18 : 연소공기량 측정장치 20 : 변환계18: combustion air amount measuring device 20: conversion meter

24 : 제어부 26 : O2제어밸브24: control unit 26: O 2 control valve

전술된 바와같은 목적을 달성하기 위해 본 발명은 유리용해로의 연소용 2차공기의 습도를 측정하기 위한 습도센서와, 상기 습도센서의 하류측에 위치되어 상기 연소용 2차공기의 량을 측정하기위한 수단과, 그에 인접한 하류측 위치에서 O2농도를 측정하기 위한 O2센서와, 상기 O2센서와 상기 습도센서의 사이에 위치되어 상기 습도센서의 출력이 설정치에 미달하는 경우 O2를 공급하기 위한 O2공급장치로 이루어지는것을 특징으로하는 용해로 2차공기 O2공급 제어장치를 제공한다.In order to achieve the object as described above, the present invention is a humidity sensor for measuring the humidity of the secondary air for combustion in the glass melting, and downstream of the humidity sensor to measure the amount of the secondary air for combustion Means for supplying an O 2 sensor for measuring O 2 concentration at a downstream position adjacent thereto and between the O 2 sensor and the humidity sensor to supply O 2 if the output of the humidity sensor is below a set point. It provides a melting furnace secondary air O 2 supply control device, characterized in that comprising the O 2 supply to.

이하 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 용해로 2차공기 O2공급 제어장치의 개략적 구성을 도시하는 도면이며, 도 2 는 본 발명에 따른 용해로 2차공기 O2공급 제어장치의 제어 루프를 보여주는 플로우 차트이다.1 is a diagram showing a schematic configuration of the melting furnace secondary air O 2 supply control device according to the invention, Figure 2 is a flow chart showing a control loop of the smelting furnace secondary air O 2 supply control device according to the invention.

도 1 및 도 2 에 도시된 바와같이, 2차공기용 덕트(10)내의 일측에는 습도센서(12)와 O2센서(16)가 설치되며, 그 사이에는 O2공급장치(14)가 설치된다.1 and 2, the humidity sensor 12 and the O 2 sensor 16 are installed at one side in the secondary air duct 10, and an O 2 supply device 14 is installed therebetween. do.

O2센서(16)는 O2가 O2공급장치(14)에 의해 공급된 후 2차공기와 충분히 혼합된 균일한 상태에서 O2농도를 검출하는것이 바람직하므로 O2공급장치(14)보다 충분히 하류측에 설치 된다. O2센서(16)와 O2공급장치(14)사이에는 연소공기량 측정장치(18)가 설치된다. 습도센서(12)는 온도와 상대습도를 감지하여 그 신호를 변환계(20)로 전달하며, 변환계(20)는 이를 절대습도로 환산하여 제어부(24)로 전달한다.Than the O 2 sensor 16 O 2 supply 14 O 2 is O 2 supply is desirable to detect the O 2 concentration in a sufficiently mixed with the secondary air after being fed by the 14 uniform state, it It is installed enough downstream. A combustion air amount measuring device 18 is installed between the O 2 sensor 16 and the O 2 supply device 14. Humidity sensor 12 detects the temperature and relative humidity and transmits the signal to the conversion system 20, the conversion system 20 converts it to absolute humidity and transmits it to the control unit 24.

제어부(24)에서는 이 절대습도값이 설정된 값과 비교하여 습도가 낮은가? 높은가?의 여부를 판단한다. 습도가 높은경우에는 O2공급량을 제어하지 않으며, 습도가 설정치보다 낮은 경우에는 O2공급장치(14)의 후단에 설치되는 O2센서(16)와 연소공기량측정장치(18)가 O2량과 연소공기량을 측정하여 그 신호를 제어부(24)로 전달한다. 제어부(24)는 절대습도와 절대습도 설정치와의 차이와 현재 공급되는 O2량 및 연소공기량을 계산하여 그에 해당하는 O2공급량을 공급하도록 O2제어밸브(26)를 제어한다. 예를 들면, 원하는 습도의 값이 20g/Nm3이었고 현재 공급되는 연소공기의 습도가 18g/Nm3이면, 연소공기량과 O2량을 계산하여 그에 해당하는 O2공급량을 공급하도록 제어밸브(26)를 개방하면 된다.Does the control unit 24 have a low humidity compared with the set value of the absolute humidity value? Is it high? If the humidity is high, the O 2 supply amount is not controlled. If the humidity is lower than the set value, the O 2 sensor 16 and the combustion air quantity measuring device 18 installed at the rear end of the O 2 supply device 14 are used to control the O 2 amount. The amount of combustion air is measured and the signal is transmitted to the controller 24. The control unit 24 controls the absolute humidity difference with the current supply O 2 control valve 26, by calculating the O 2 amount and the combustion air amount supplied to the O 2 supply to it is the absolute humidity and the set point. For example, the value of the desired moisture 20g / Nm 3 was the humidity of the combustion air is now supplied to 18g / If Nm 3, the control valve (26 to calculate the combustion air amount and O 2 amounts to provide the O 2 supply to it Open).

습도가 설정치보다 높은 경우에는 이를 별도로 제어하지 않으므로 용해로의 안정된 운행을 위해서는, 습도 설정치를 계절(동절기 및 하절기) 및 날씨(우천시 또는 맑을때)에 따른 변동폭을 조정가능하도록, 어느정도 높게 설정하는 것이 바람직하다. 습도가 설정치보다 높아지는 경우, 필요하다면, 별도의 제습장치를 사용하여 습도를 낮추는 방법도 사용할 수 있다.If the humidity is higher than the set value, it is not controlled separately. Therefore, for stable operation of the melting furnace, it is preferable to set the humidity set value to a certain level so that the fluctuation range according to the season (winter and summer) and the weather (rainy or sunny) can be adjusted. Do. If the humidity rises above the set point, a separate dehumidifier can be used to lower the humidity if necessary.

한편, 연소비 조정없이 O2만을 공급하는 경우, 공급되는 산소량만큼 연소공기의 전체 체적이 증가하고, 이에 따라 과잉산소가 공급될 우려가 있다. 따라서, 공급되는 산소량에 따라 연소공기량을 조정해줄 필요가 있다. 즉, O2를 추가로 공급하게 되는 경우, 공급되는 O2량에 해당하는 만큼 덕트로 유입되는 연소공기량을 감소시킴으로써, 전체 연소비를 O2공급 없을때의 연소비보다 낮추어주는 것이 바람직하다.On the other hand, when only O 2 is supplied without adjusting the combustion ratio, the total volume of the combustion air is increased by the amount of oxygen supplied, which may cause excess oxygen to be supplied. Therefore, it is necessary to adjust the amount of combustion air in accordance with the amount of oxygen supplied. In other words, O when the supply to the second add, it is preferable that by reducing the combustion air flowing in the duct by an amount corresponding to the O 2 amount to be supplied, by lowering the total annual consumption than a year consumption in O 2 supply is not.

연소공기중의 수분 함유량에 따라 오일의 열효율이 달라져 이것으로 인해 용해로 운전의 불안정성을 내포하고 있었다. 대기의 습도는 하루중에도 수시로 변하고 이것은 용해로의 불안정성이 매우 높다는 것을 의미한다. 전술한 바와같은 본 발명의 용해로 O2공급 제어장치를 채용함으로써, O2를 공급하여 습도 변화에 따른 오일 열효율의 변화를 방지하면 용해로의 불안정성을 방지할 수 있다. 또한 O2공급으로 오일의 완전연소를 도모할 수 있고 폐가스 부피도 줄어들어 용해로 운전이 더 안정적으로 이루어지는 효과가 있다.The thermal efficiency of the oil varies depending on the moisture content in the combustion air, which implies instability in the furnace operation. Atmospheric humidity changes frequently throughout the day, which means that the furnace is very unstable. By employing the melting furnace O 2 supply control device of the present invention as described above, instability of the melting furnace can be prevented by supplying O 2 to prevent the change in the thermal efficiency of the oil according to the humidity change. In addition, the O 2 supply allows the complete combustion of oil and reduces the waste gas volume, making the operation of the furnace more stable.

Claims (4)

유리용해로의 연소용 2차공기의 습도를 측정하기 위한 습도센서와, 상기 습도센서의 하류측에 위치되어 상기 연소용 2차공기의 량을 측정하기위한 수단과, 그에 인접한 하류측 위치에서 O2농도를 측정하기 위한 O2센서와, 상기 O2센서와 상기 습도센서의 사이에 위치되어 상기 습도센서의 출력이 설정치에 미달하는 경우 O2를 공급하기 위한 O2공급장치로 이루어지는 것을 특징으로하는 용해로 2차공기 O2공급 제어장치.Humidity sensor for measuring the humidity of the secondary air for combustion in the glass melting furnace, means for measuring the amount of the secondary air for combustion located downstream of the humidity sensor, and O 2 in the downstream position adjacent thereto O 2 sensor for measuring the concentration, and between the O 2 sensor and the humidity sensor, characterized in that consisting of O 2 supply device for supplying O 2 when the output of the humidity sensor is less than the set value Furnace Secondary Air O 2 Supply Control. 제 1 항에 있어서, 상기 O2센서는 2차공기 공급용 덕트내에 설치되며, 상기 O2공급장치는 상기 O2센서보다 상류측의 덕트내에에 설치되는 용해로 2차공기 O2공급 제어장치.The melting furnace secondary air O 2 supply control device according to claim 1, wherein the O 2 sensor is provided in a secondary air supply duct, and the O 2 supply device is installed in a duct upstream of the O 2 sensor. 제 1 항에 있어서, O2가 추가로 공급되는 경우, 덕트로 유입되는 연소공기량을 O2추가량에 해당하는 만큼 감소시킴으로써 전체연소비를 낮추어주는 용해로 2차 공기 O2공급 제어장치.The furnace secondary air O 2 supply control device according to claim 1, wherein when the O 2 is further supplied, the total combustion ratio is lowered by reducing the amount of combustion air flowing into the duct by an amount corresponding to the amount of O 2 added. 제 1 항, 2 항 또는 3 항에 기재된 O2공급장치를 구비하는 용해로.Melting furnace having an O 2 supply device as set forth in claim 1, 2 or 3.
KR1019980039124A 1998-09-22 1998-09-22 O2 supply control device of glass melting duct KR20000020505A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107572785A (en) * 2017-09-30 2018-01-12 重庆兆峰玻璃晶品有限公司 Vial manufacture craft

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR870003018A (en) * 1985-09-20 1987-04-14 원본미기재 Combustion Device for Glass Dispersion Cold Heating
KR100411635B1 (en) * 1995-03-30 2004-03-18 아사히 가라스 가부시키가이샤 Secondary air humidity control device of glass melting furnace and glass melting furnace equipped with this control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR870003018A (en) * 1985-09-20 1987-04-14 원본미기재 Combustion Device for Glass Dispersion Cold Heating
KR100411635B1 (en) * 1995-03-30 2004-03-18 아사히 가라스 가부시키가이샤 Secondary air humidity control device of glass melting furnace and glass melting furnace equipped with this control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107572785A (en) * 2017-09-30 2018-01-12 重庆兆峰玻璃晶品有限公司 Vial manufacture craft
CN107572785B (en) * 2017-09-30 2020-04-21 重庆兆峰玻璃晶品有限公司 Glass bottle manufacturing process

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