CN104150745A - Combustion air early-warning control system for melting furnace and fiberglass furnace comprising combustion air early-warning control system - Google Patents
Combustion air early-warning control system for melting furnace and fiberglass furnace comprising combustion air early-warning control system Download PDFInfo
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- CN104150745A CN104150745A CN201310175107.5A CN201310175107A CN104150745A CN 104150745 A CN104150745 A CN 104150745A CN 201310175107 A CN201310175107 A CN 201310175107A CN 104150745 A CN104150745 A CN 104150745A
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Abstract
The invention discloses a combustion air early-warning control system for a melting furnace, and a fiberglass furnace comprising the combustion air early-warning control system. The combustion air early-warning control system for the melting furnace is arranged on a combustion-supporting pipeline of the melting furnace and comprises a central control part, a first pressure switch, a first electromagnetic valve and a second pressure switch, wherein the central control part is electrically connected with a standby fan and used for controlling start or stop of the standby fan; the first pressure switch is arranged on a main pipeline to form a first control point, electrically connected to the central control part and used for transmitting electrical signals for controlling the start or stop of the standby fan to the central control part; the first electromagnetic valve is arranged on a standby pipeline; the second pressure switch is arranged on the standby pipeline to form a second control point, electrically connected to the first electromagnetic valve and used for opening or closing the first electromagnetic valve through controlling on-off of a circuit. The combustion air early-warning control system for the melting furnace and the fiberglass furnace comprising the same have the advantages that the pipeline switching can be completed automatically, and the continuous combustion-supporting operation is guaranteed, so that the temperature of the melting furnace is stable, the normal production is ensured, and the service lives of the melting furnace and equipment thereof are prolonged.
Description
Technical field
The present invention relates to a kind of combustion-supporting pipe technology of melting furnaces, particularly a kind of melting furnaces combustion air pre-alarming control system and comprise its glass fibre melting furnaces.
Background technology
At present, in the production process of kiln, particularly in the production process of glass fiber kiln, the kiln required combustion-supporting pipeline that burns all can be prepared two-way pipeline and is connected to total pipeline and carries out combustion-supporting to kiln air-supply, wherein a road is as main line, bear the work to kiln air-supply under the most of the time, it normally adopts motor fan as wind regime, and an other road is as spare duct, bear main line go wrong can not service condition under as the work of standby air source, it adopts diesel oil blower fan as wind regime conventionally, if main line breaks down like this, have a power failure while causing motor fan to work as happened suddenly, spare duct just can open and use to make combustion-supportingly can not stop.
And in order to ensure the timely of main line and spare duct and switching accurately, now just occurred that some combustion air early warning systems ensure the smooth switching of pipeline.But, because current combustion air early warning system is subject to the incomplete restriction of technology, it is running into emergency situation, have a power failure while causing electric fan fault as happened suddenly, can only send corresponding alarm to fault, can not automatically complete the switching of main line and spare duct, must rely on manual operation just can complete the switching of pipeline, like this complete pipeline switching from breaking down to and just formed a transitional period of growing, and at this transition period, combustion air in combustion-supporting pipeline will inevitably cause the interruption of for some time, thereby cause kiln temperature to occur fluctuation, normal production is impacted, the frequent fluctuation of simultaneous temperature also can exert an influence to the work-ing life of kiln brick material and equipment.
Therefore, we need one badly and can automatically complete pipeline and switch, and ensure that combustion-supporting operation uninterruptedly carries out, thereby stablize kiln temperature, guarantee the new technology that the work-ing life of kiln and equipment thereof is normally carried out and extends in production.
Summary of the invention
Object of the present invention is exactly for the problems referred to above, providing one can automatically complete pipeline switches, ensure that combustion-supporting operation uninterruptedly carries out, thus stablize kiln temperature, guarantee to produce normally carry out and extend kiln and equipment thereof work-ing life melting furnaces combustion air pre-alarming control system and comprise its glass fibre melting furnaces.
To achieve these goals, the invention provides following technical scheme: melting furnaces combustion air pre-alarming control system, be arranged on the combustion-supporting pipeline of melting furnaces, main line and spare duct that this combustion-supporting pipeline comprises main pipe rail and is communicated with and is arranged in parallel with this main pipe rail, on this main line and spare duct, be also arranged with main air blower and stand-by fan, this melting furnaces combustion air pre-alarming control system comprises:
Center-control portion, it is electrically connected with above-mentioned stand-by fan, for controlling the startup of this stand-by fan or stopping;
The first pressure switch, it is arranged at and on above-mentioned main pipe rail, forms the first reference mark, and this first pressure switch is also electrically connected to above-mentioned center-control portion, for transmitting and control the electrical signal that above-mentioned stand-by fan starts or stops to this center-control portion;
The first magnetic valve, it is arranged on above-mentioned spare duct;
The second pressure switch, it is arranged on above-mentioned spare duct and forms the second reference mark, and this second pressure switch is also electrically connected to above-mentioned the first magnetic valve, for opened or closed this first magnetic valve by the break-make of pilot circuit.
Further, the first above-mentioned pressure switch is arranged on one first arm, and this first arm is communicated with above-mentioned main pipe rail; The second above-mentioned pressure switch is arranged on one second arm, and this second arm is communicated with above-mentioned spare duct.
Further, above-mentioned melting furnaces combustion air pre-alarming control system also comprises:
The second magnetic valve, it is arranged on above-mentioned main line;
The 3rd pressure switch, it is arranged on above-mentioned main line and forms the 3rd reference mark, and the 3rd pressure switch is also electrically connected to above-mentioned the second magnetic valve, for opened or closed this second magnetic valve by the break-make of pilot circuit.
Further, the 3rd above-mentioned pressure switch is arranged on one the 3rd arm, and the 3rd arm is communicated with above-mentioned main line.
Further, above-mentioned melting furnaces combustion air pre-alarming control system also comprises:
At least one warning howler;
The 4th pressure switch, it is arranged on above-mentioned main pipe rail and forms the 4th reference mark, and the 4th pressure switch is also electrically connected to above-mentioned warning howler, for opening or close this warning howler by the break-make of pilot circuit;
The 5th pressure switch, it is arranged at the side in the face of above-mentioned stand-by fan that forms the 5th reference mark, above-mentioned the second pressure switch on above-mentioned spare duct, the 5th pressure switch is also electrically connected to above-mentioned warning howler, for opening or close this warning howler by the break-make of pilot circuit.
Further, the 4th above-mentioned pressure switch is arranged on one the 4th arm, and the 4th arm is communicated with above-mentioned main pipe rail; The 5th above-mentioned pressure switch is arranged on one the 5th arm, and the 5th arm is communicated with above-mentioned spare duct.
Glass fibre melting furnaces, comprise kiln and are communicated with the combustion-supporting pipeline of the inner chamber of described kiln,
It also comprises melting furnaces combustion air pre-alarming control system as above, and it is arranged on this combustion-supporting pipeline.
Adopt the beneficial effect of above technical scheme to be:
1) system of the present invention has mainly comprised center-control portion, the first pressure switch, the first magnetic valve and the second pressure switch, wherein, the first pressure switch is arranged on main pipe rail, for the force value on main pipe rail is detected, according to the setting to normal pressure value, when the actual force value recording of the first pressure switch lower than set normal pressure value time, show that now the long-time main line using breaks down, now the first pressure switch triggers and sends an electrical signal to center-control portion, stand-by fan is opened according to this electrical signal control by center-control portion, after stand-by fan starts, be arranged at the blast that the second pressure switch on spare duct records in pipeline and be greater than its setup pressure value, trigger at once the second pressure switch turning circuit and open the first magnetic valve, pausing does not appear in the continuation operation and the centre that have so just ensured combustion-supporting pipeline, it compared with prior art, remove the step of manually removing to switch pipeline from, directly automatically pipeline is switched, ensure uninterruptedly carrying out of combustion-supporting operation, thereby stablize kiln temperature, guarantee the work-ing life of normally carrying out and extended kiln and equipment thereof of producing,
2) in the further embodiment of system of the present invention, the second magnetic valve and the 3rd pressure switch are also comprised, the 3rd pressure switch is arranged on main line, after main line breaks down, be accompanied by enabling of spare duct, the 3rd pressure switch records the normal pressure value that force value on main line is less than its setting, it is triggered at once, then cut off circuit and close the second magnetic valve, main line is stopped automatically, thereby can not impact the combustion-supporting operation of spare duct;
3) in the further embodiment of system of the present invention, also comprise at least one warning howler, the 4th pressure switch and the 5th pressure switch, the 4th pressure switch is arranged on main pipe rail, like this after main line breaks down altogether, be that blast in main pipe rail starts to reduce, in the time being reduced to the normal pressure value that is less than the 4th pressure switch setting, this normal pressure value should be that the setup pressure value that is greater than the first pressure switch is set, it can send in the first pressure switch electrical signal and open before stand-by fan turning circuit and carry out alarm for opening and report to the police to center-control portion, first remind field personnel to note the failure condition of combustion-supporting pipeline, the 5th pressure switch is arranged on spare duct and is positioned at the side in the face of stand-by fan of the second pressure switch, like this after stand-by fan is activated, be that blast in spare duct starts to increase, in the time increasing to the normal pressure value that is greater than the 5th pressure switch setting, its can be before the second pressure switch be opened the first magnetic valve first turning circuit carry out alarm for opening and report to the police, remind field personnel to note the situation of spare duct,
4) glass fibre melting furnaces of the present invention have adopted above-mentioned melting furnaces combustion air pre-alarming control system, they are compared with existing glass fibre melting furnaces, can remove the step of manual switching pipeline from, directly automatically pipeline is switched, ensure uninterruptedly carrying out of combustion-supporting operation, thereby can stablize the work-ing life of the temperature in kiln, the production running of guaranteeing kiln and prolongation glass fibre melting furnaces.
Brief description of the drawings
Fig. 1 is melting furnaces combustion air pre-alarming control system of the present invention structural representation in an embodiment.
Fig. 2 is the control flow schematic diagram in an embodiment of center-control portion of melting furnaces combustion air pre-alarming control system of the present invention.
Fig. 3 is glass fibre melting furnaces of the present invention structural representations in an embodiment.
Wherein, the 1. combustion-supporting pipeline of main pipe rail 11. first pressure switch 111. first arm 12. the 4th pressure switch 121. the 4th arm 2. main line 21. main air blower 22. second magnetic valve 23. the 3rd pressure switch 231. the 3rd arm 3. spare duct 31. stand-by fan 32. first magnetic valve 33. second pressure switch 331. second arm 34. the 5th pressure switch 341. the 5th arm 4. center-control portion 51. first warning howler 52. second warning howler 6. heat exchanger 7. kiln 81. control valve 82. manual valve 9. atmospheric pipe 10..
Embodiment
Describe the preferred embodiment of the present invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1-2, melting furnaces combustion air pre-alarming control system in the present embodiment is arranged on the combustion-supporting pipeline of melting furnaces, this combustion-supporting pipeline comprises main pipe rail 1, and the main line 2 and the spare duct 3 that are communicated with main pipe rail 1 and are arranged in parallel, on main line 2 and spare duct 3, be also arranged with main air blower 21 and stand-by fan 31, the general motor fan that adopts of this main air blower 21, the general diesel oil blower fan that adopts of stand-by fan 31, can ensure that like this motor fan cannot be worked while causing main line 2 to work under power-off condition, stand-by fan 31 can also work on, thereby ensure that spare duct can continue running.The melting furnaces combustion air pre-alarming control system of the present embodiment comprises: center-control portion 4, and it is electrically connected with stand-by fan 31, is mainly used in controlling the startup of stand-by fan 31, also can be for controlling stopping of stand-by fan 31; The first pressure switch 11, it is arranged at and on main pipe rail 1, forms the first reference mark, the first pressure switch 11 is also electrically connected to center-control portion 4, be mainly used in transmitting and controlling the electrical signal that stand-by fan 31 starts to center-control portion 4, also can be for transmitting and control the electrical signal that stand-by fan 31 stops to center-control portion 4; The first magnetic valve 32, it is arranged on spare duct 3, is specifically positioned at the position on stand-by fan 31; The second pressure switch 33, it is arranged at and on spare duct 3, forms the second reference mark, the second pressure switch 33 is also electrically connected to the first magnetic valve 32, is mainly used in opening the first magnetic valve 32 by the conducting of pilot circuit, also can be for close the first magnetic valve 32 by the disconnection of pilot circuit.Melting furnaces combustion air pre-alarming control system in the present embodiment has mainly comprised center-control portion 4, the first pressure switch 11, the first magnetic valve 32 and the second pressure switch 33, wherein, the first pressure switch 11 is arranged on main pipe rail 1, for the force value on main pipe rail 1 is detected, according to the setting to normal pressure value, for example, be set as 200mmH
2o, when the actual force value recording of the first pressure switch is lower than 200mmH
2when O, show that now the long-time main line 1 using breaks down, now the first pressure switch 11 triggers and sends an electrical signal to center-control portion 4, stand-by fan 31 is opened according to this electrical signal control by center-control portion 4, after stand-by fan 31 starts, be arranged at the blast that the second pressure switch 33 on spare duct 3 records in pipeline and be greater than its setup pressure value, for example, be set as 110 mmH
2when O, the blast recording in pipeline when the second pressure switch 33 is greater than 110 mmH
2when O, the second pressure switch 33 at once turning circuit is opened the first magnetic valve 32, pausing does not appear in the continuation operation and the centre that have so just ensured combustion-supporting pipeline, it compared with prior art, remove the step of manually removing to switch main line 2 and spare duct 3 from, directly automatically it is switched, ensured uninterruptedly carrying out of combustion-supporting operation, thus the work-ing life of normally carrying out and extended kiln and equipment thereof of having stablized kiln temperature, having guaranteed production.
As shown in Figure 1, the first above-mentioned pressure switch 11 can be arranged on one first arm 111, and this first arm 111 is communicated with main pipe rail 1; The second above-mentioned pressure switch 33 can be arranged on one second arm 331, and this second arm 331 is communicated with spare duct 3.By pick out respectively one first arm 111 and one second arm 331 from main pipe rail 1 and spare duct 3, can ensure that the first pressure switch 11 and the second pressure switch 33 can not have influence on the normal operation of main pipe rail 1 and spare duct 3 in the time of pressure measurement.
Continue as shown in Figure 1, above-mentioned melting furnaces combustion air pre-alarming control system can also comprise: the second magnetic valve 22, and it is arranged on main line 2; The 3rd pressure switch 23, it is arranged at and on main line 2, forms the 3rd reference mark, the 3rd pressure switch 23 is also electrically connected to the second magnetic valve 22, is mainly used in closing the second magnetic valve 22 by the disconnection of pilot circuit, also can be for open the second magnetic valve 22 by the conducting of pilot circuit.The 3rd pressure switch 23 is arranged on main line 2, after main line 2 breaks down, is accompanied by enabling of spare duct 3, and the 3rd pressure switch 23 records the normal pressure value that force value on main line is less than its setting, for example, be set as 100 mmH
2o, the force value that the 3rd pressure switch 23 records on main line is less than 100 mmH
2when O, the 3rd pressure switch 23 is triggered at once, then closes the second magnetic valve 22 by cutting off circuit, main line 2 is stopped automatically, thereby can not impact the combustion-supporting operation of spare duct 3.
Continue as shown in Figure 1, the 3rd above-mentioned pressure switch 23 can be arranged on one the 3rd arm 231, and the 3rd arm 231 is communicated with main line 2.By pick out one the 3rd arm 231 from main line 2, can ensure that the 3rd pressure switch 23 can not have influence on the normal operation of main line 2 in the time of pressure measurement.
Continue as shown in Figure 1, above-mentioned melting furnaces combustion air pre-alarming control system can also comprise: two warning howlers, i.e. the first warning howler 51 and the second warning howler 52, the first warning howler 51 and the second warning howler 52 are served respectively the 4th pressure switch 12 and the 5th pressure switch 34, if certainly considered in cost consideration or space, it is that the 4th pressure switch 12 and the 5th pressure switch 34 are served that a warning howler also can be only set simultaneously; The 4th pressure switch 12, it is arranged at and on main pipe rail 1, forms the 4th reference mark, the 4th pressure switch 12 is also electrically connected to the first warning howler 51, be mainly used in opening the first warning howler 51 by the conducting of pilot circuit and report to the police, also can be for close the first warning howler 51 stop alarms by the disconnection of pilot circuit; The 5th pressure switch 34, it is arranged at the side in the face of stand-by fan 31 that forms the 5th reference mark on spare duct 3 and be positioned at the second pressure switch 33, the 5th pressure switch 34 is also electrically connected to the second warning howler 52, be mainly used in opening the second warning howler 52 by the conducting of pilot circuit and report to the police, also can be for close the second warning howler 52 stop alarms by the disconnection of pilot circuit.The 4th pressure switch 12 is arranged on main pipe rail 1, after main line 2 breaks down altogether, be that blast in main pipe rail 1 starts to reduce, when being reduced to while being less than the normal pressure value that the 4th pressure switch 12 sets, this normal pressure value should be that the setup pressure value that is greater than the first pressure switch 11 is set, for example, be set as 230 mmH
2o, the ventilation pressure loss in main pipe rail 1 is low to moderate 230 mmH
2when O is following, it can be sent electrical signal to center-control portion 4 in the first pressure switch 11 and open the front turning circuit of stand-by fan 31 and open the first warning howler 51 and report to the police, first remind field personnel to note the failure condition of combustion-supporting pipeline; The 5th pressure switch 34 is arranged on spare duct 3 and is positioned at the side in the face of stand-by fan 31 of the second pressure switch 33, like this after stand-by fan 31 is activated, be that blast in spare duct 3 starts to increase, when increasing to while being greater than the normal pressure value that the 5th pressure switch 34 sets, this normal pressure value should be that the setup pressure value that is less than the second pressure switch 33 is set, for example, be set as 100 mmH
2o, the blast in its spare duct 3 increases to 100 mmH
2when O is above, can opens the front first turning circuit of the first magnetic valve 32 in the second pressure switch 33 and open the second warning howler 52 and report to the police, remind field personnel to note the situation of spare duct 3.
Continue as shown in Figure 1, the 4th pressure switch 12 can be arranged on one the 4th arm 121, and the 4th arm 121 is communicated with main pipe rail 1; The 5th pressure switch 34 can be arranged on one the 5th arm 341, and the 5th arm 341 is communicated with spare duct 3.By pick out respectively one the 4th arm 121 and one the 5th arm 341 from main pipe rail 1 and spare duct 3, can ensure that the 4th pressure switch 12 and the 5th pressure switch 34 can not have influence on the normal operation of main pipe rail 1 and spare duct 3 in the time of pressure measurement.
As shown in Figure 2, after the first pressure switch is triggered, send electrical signal for opening stand-by fan to center-control portion, center-control portion sends steering order for the opening stand-by fan motor to stand-by fan according to this electrical signal, opens stand-by fan by controlling starter motor.
Introduce working process below:
Shown in Fig. 1 and 2, after main line 2 breaks down, as main air blower 21 stalls after having a power failure, at this moment main line 2 no longer continues to blow to main pipe rail 1, blast in main pipe rail 1 starts to reduce, be reduced in the ban the force value of the 4th pressure switch 12 interior settings when following, first the 4th pressure switch 12 is triggered, then the 4th pressure switch 12 turning circuits are opened the first warning howler 51 and are reported to the police, in the time that the blast in main pipe rail 1 continues to be reduced to below the force value of the first pressure switch 11 interior settings, the first pressure switch 11 is triggered, after triggering, the first pressure switch 11 provides electrical signal for opening stand-by fan to center-control portion 4, center-control portion 4 starts according to this electrical signal control stand-by fan 31, after stand-by fan 31 starts, blast in spare duct 3 starts to increase, when blast increases to the setup pressure value of the 5th pressure switch 34 when above, the 5th pressure switch 34 is triggered, then the 5th pressure switch 34 turning circuits are opened the second warning howler 52 and are reported to the police, when the blast in spare duct 3 continues to increase to the setup pressure value of the second pressure switch 33 when above, the second pressure switch 33 is triggered, then the second pressure switch 33 turning circuits are opened the first magnetic valve 32 and are opened spare duct 2, thereby spare duct 2 starts to blow to main pipe rail 1, blast in main line 2 has started to reduce simultaneously, in the time being reduced to the setup pressure value of the 3rd pressure switch 23, the 3rd pressure switch 23 is triggered, then the 3rd pressure switch 23 breaking circuitss cut out the second magnetic valve 22 and cut off main line 2, main line now no longer works on.
As shown in Figure 3, the glass fibre melting furnaces of the present embodiment comprise described in kiln 7 and connection
The combustion-supporting pipeline 10 of the inner chamber of kiln 7, it also comprises melting furnaces combustion air pre-alarming control system as above, it is arranged on combustion-supporting pipeline 10.This glass fibre melting furnaces have adopted above-mentioned melting furnaces combustion air pre-alarming control system, they are compared with existing glass fibre melting furnaces, can remove the step of manual switching pipeline from, directly automatically pipeline is switched, ensure uninterruptedly carrying out of combustion-supporting operation, thereby can stablize the work-ing life of the temperature in kiln, the production running of guaranteeing kiln and prolongation glass fibre melting furnaces.
Continue as shown in Figure 3, above-mentioned glass fibre melting furnaces can also comprise the parts such as control valve 81, manual valve 82, atmospheric pipe 9, heat exchanger 6, and control valve 81, multiple manual valve 82, atmospheric pipe 9, heat exchanger 6 are all arranged on combustion-supporting pipeline 10.Certainly also should comprise the parts more well known in the prior art such as combustion equipment, handling equipment, no longer illustrate here and repeat.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and this enters, and these all belong to protection scope of the present invention.
Claims (7)
1. melting furnaces combustion air pre-alarming control system, be arranged on the combustion-supporting pipeline of melting furnaces, main line and spare duct that described combustion-supporting pipeline comprises main pipe rail and is communicated with and is arranged in parallel with described main pipe rail, on described main line and spare duct, be also arranged with main air blower and stand-by fan, it is characterized in that: described melting furnaces combustion air pre-alarming control system comprises:
Center-control portion, it is electrically connected with described stand-by fan, for controlling the startup of described stand-by fan or stopping;
The first pressure switch, it is arranged at and on described main pipe rail, forms the first reference mark, and described the first pressure switch is also electrically connected to described center-control portion, for transmitting and control the electrical signal that described stand-by fan starts or stops to described center-control portion;
The first magnetic valve, it is arranged on described spare duct;
The second pressure switch, it is arranged on described spare duct and forms the second reference mark, and described the second pressure switch is also electrically connected to described the first magnetic valve, for opened or closed described the first magnetic valve by the break-make of pilot circuit.
2. melting furnaces combustion air pre-alarming control system according to claim 1, is characterized in that: described the first pressure switch is arranged on one first arm, and described the first arm is communicated with described main pipe rail; Described the second pressure switch is arranged on one second arm, and described the second arm is communicated with described spare duct.
3. melting furnaces combustion air pre-alarming control system according to claim 1, is characterized in that: also comprise:
The second magnetic valve, it is arranged on described main line;
The 3rd pressure switch, it is arranged on described main line and forms the 3rd reference mark, and described the 3rd pressure switch is also electrically connected to described the second magnetic valve, for opened or closed described the second magnetic valve by the break-make of pilot circuit.
4. melting furnaces combustion air pre-alarming control system according to claim 3, is characterized in that: described the 3rd pressure switch is arranged on one the 3rd arm, and described the 3rd arm is communicated with described main line.
5. melting furnaces combustion air pre-alarming control system according to claim 1, is characterized in that: also comprise:
At least one warning howler;
The 4th pressure switch, it is arranged on described main pipe rail and forms the 4th reference mark, and described the 4th pressure switch is also electrically connected to described warning howler, for opening or close described warning howler by the break-make of pilot circuit;
The 5th pressure switch, it is arranged at the side in the face of described stand-by fan that forms the 5th reference mark, described the second pressure switch on described spare duct, described the 5th pressure switch is also electrically connected to described warning howler, for opening or close described warning howler by the break-make of pilot circuit.
6. melting furnaces combustion air pre-alarming control system according to claim 5, is characterized in that: described the 4th pressure switch is arranged on one the 4th arm, and described the 4th arm is communicated with described main pipe rail; Described the 5th pressure switch is arranged on one the 5th arm, and described the 5th arm is communicated with described spare duct.
7. glass fibre melting furnaces, comprise kiln and are communicated with the combustion-supporting pipeline of the inner chamber of described kiln, it is characterized in that: also comprise the melting furnaces combustion air pre-alarming control system as described in as arbitrary in claim 1-8, it is arranged on described combustion-supporting pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310175107.5A CN104150745B (en) | 2013-05-14 | 2013-05-14 | Melting furnaces combustion air pre-alarming control system and comprise its glass fibre melting furnaces |
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|---|---|---|---|
| CN201310175107.5A CN104150745B (en) | 2013-05-14 | 2013-05-14 | Melting furnaces combustion air pre-alarming control system and comprise its glass fibre melting furnaces |
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| CN104150745A true CN104150745A (en) | 2014-11-19 |
| CN104150745B CN104150745B (en) | 2016-06-01 |
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| CN108433637A (en) * | 2018-04-20 | 2018-08-24 | 宁波智果科技咨询服务有限公司 | A kind of more hose couplings of dust catcher |
| CN112503566A (en) * | 2021-02-04 | 2021-03-16 | 亿昇(天津)科技有限公司 | Fan switching method |
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| CN101935145A (en) * | 2010-04-22 | 2011-01-05 | 河北东旭投资集团有限公司 | Method for improving vitreous humor melting quality |
| CN101985387A (en) * | 2010-10-21 | 2011-03-16 | 济南力诺玻璃制品有限公司 | Full premixing device for channel fuel gas air |
| CN203284305U (en) * | 2013-05-14 | 2013-11-13 | 台嘉玻璃纤维有限公司 | Combustion air early-warning control system for melting furnace and fiberglass furnace comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101306913A (en) * | 2008-06-30 | 2008-11-19 | 浙江振申绝热科技有限公司 | Combustion control system of foamed glass foaming furnace |
| CN101935145A (en) * | 2010-04-22 | 2011-01-05 | 河北东旭投资集团有限公司 | Method for improving vitreous humor melting quality |
| CN101985387A (en) * | 2010-10-21 | 2011-03-16 | 济南力诺玻璃制品有限公司 | Full premixing device for channel fuel gas air |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108433637A (en) * | 2018-04-20 | 2018-08-24 | 宁波智果科技咨询服务有限公司 | A kind of more hose couplings of dust catcher |
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| CN112503566B (en) * | 2021-02-04 | 2021-04-27 | 亿昇(天津)科技有限公司 | Fan switching method |
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|---|---|
| CN104150745B (en) | 2016-06-01 |
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