CN111116027A - Air supply equipment of glass tempering furnace and corresponding glass tempering furnace - Google Patents
Air supply equipment of glass tempering furnace and corresponding glass tempering furnace Download PDFInfo
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- CN111116027A CN111116027A CN202010038727.4A CN202010038727A CN111116027A CN 111116027 A CN111116027 A CN 111116027A CN 202010038727 A CN202010038727 A CN 202010038727A CN 111116027 A CN111116027 A CN 111116027A
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- 239000011521 glass Substances 0.000 title claims abstract description 86
- 238000005496 tempering Methods 0.000 title claims abstract description 61
- 238000001816 cooling Methods 0.000 claims abstract description 95
- 230000009467 reduction Effects 0.000 claims description 31
- 238000009434 installation Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 11
- 238000002360 preparation method Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 210000001503 joint Anatomy 0.000 description 8
- 238000005728 strengthening Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 238000010791 quenching Methods 0.000 description 6
- 230000000171 quenching effect Effects 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000005341 toughened glass Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
- C03B27/044—Tempering or quenching glass products using gas for flat or bent glass sheets being in a horizontal position
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Abstract
The invention relates to an air supply device of a glass tempering furnace and the glass tempering furnace using the air supply device, belonging to the field of physical tempering and cooling of glass. The air grid device comprises a plurality of air grid packages which are symmetrically arranged up and down, wherein each air grid package comprises one or more air grid strips, and a plurality of air outlets are formed in the surface, close to a conveying roller way, of each air grid strip; the air supply equipment is characterized by also comprising an air supply device group for supplying air to the air grid packet, wherein the air supply device group consists of a plurality of small air supply devices. The invention adopts a plurality of small air supply devices, namely a method of replacing one large fan by a plurality of low-power fans/air pumps, directly or indirectly supplies air to the air grid packet, the small air supply devices have small motors, and have the advantages of quick instant starting and boosting and random starting and stopping, the fans do not need overlong preparation time, the useless power consumption is reduced, the energy consumption is reduced by at least 30 percent, and the invention has obvious energy-saving effect.
Description
Technical Field
The invention relates to the field of glass physical tempering and cooling, in particular to air supply equipment of a glass tempering furnace and the glass tempering furnace using the air supply equipment.
Background
The toughened glass production line used in the current market generally comprises an upper piece platform, a heating furnace, a cooling section and a lower piece platform. And (3) loading the glass to be processed on an upper piece platform, heating the glass at high temperature in a heating furnace, toughening and cooling the glass in a cooling section, and unloading the glass on a lower piece platform.
For a cooling section in the existing physical tempering, an air supply system of the cooling section adopts one or more (series) high-power or ultra-high-power fans to collect air volume and then distributes air supply to a whole air grid (dozens or even dozens of independent air grid nozzles form the whole air grid, even more than 100 air grid nozzles can be formed for a continuous production process with large capacity), the power of a single fan is concentrated at 110 KW-315 KW, and the power of the fan even needs to reach more than 1000KW for special glass such as fireproof glass. Such as: CN105271667A discloses a cooling system for toughened glass and a cooling method thereof, comprising a Roots blower generating wind flow, wherein the wind supply is provided by a high-power Roots blower.
However, the air supply system in the prior art has the following defects:
1. the existing fans suitable for the cooling section of the toughening furnace are large fans with 110 kw-315 kw and the diameter of an impeller exceeding 1m, when the fans are used, the acceleration starting time from zero rotating speed to rated rotating speed is long, 20-50 seconds are needed each time, for thin-layer glass, the real toughening use time only needs several seconds to ten seconds (less than or equal to 20 seconds), for example, the glass with the thickness of 3mm, the heating time is 90-100 seconds, the quenching air pressure is 16000pa, the quenching time is 5-10 seconds, the subsequent cooling air pressure is 2000pa, the cooling time is 10-15 seconds, as the cooling time is far less than the heating time, in order to save electric energy, the fans are discontinuously started and stopped when in actual use, and the fans have certain standby frequency; however, the long-time preparation time of the fan is actually the idle work, the preparation time (20-50 s) of the large fan exceeds the service time (5-10 s), most of the electric energy is used for the start preparation of the fan, and great electric energy resources are wasted;
2. the heavy high-power (diameter) fan impeller has large throwing power during high-speed operation, frequent accidents of throwing and rotting of the impeller, high danger, low safety and short service life, and the problem is easy to occur in 3 to 5 years generally; the volume is large (the diameter of the impeller reaches 1.0-1.6 meters), the occupied area is large, and once the impeller is damaged, the impeller is not easy to replace and maintain, and the impeller is inconvenient to use in practice;
3. when the high-power fan is used, the noise is overlarge and can reach 110 decibels, so that the hearing of an operator is greatly damaged;
4. in the prior art, wind pressure is concentrated and distributed and transferred between a fan and a wind grid in a wind collecting box mode, the fans of the stations of the glass plate can be completely started in the forward moving process, and continuous and stable air supply can be guaranteed.
The air supply system in the prior art has the defects of high energy consumption, short service life, difficult maintenance, high danger, overlarge noise and the like, and needs to be improved.
Disclosure of Invention
In order to solve the technical problems of large energy consumption, short service life, difficult maintenance, high danger, overlarge noise and the like of an air supply system in the prior art, the invention provides the air supply equipment of the glass tempering furnace, which has the advantages of energy conservation, long service life, easy installation and maintenance, high safety performance and low noise, and the glass tempering furnace which is correspondingly applied, and can effectively reduce the production cost and improve the working environment.
The invention provides air supply equipment of a glass tempering furnace, which comprises a plurality of air grid packages which are symmetrically arranged up and down, wherein each air grid package comprises one or more air grid bars, and a plurality of air outlets are formed in the surface, close to a conveying roller way, of each air grid bar; the air supply equipment is characterized by also comprising an air supply device group for supplying air to the air grid packet, wherein the air supply device group consists of a plurality of small air supply devices.
Furthermore, the small air supply device adopts a fan or an air pump with the power less than or equal to 50kw and the diameter of an impeller less than or equal to 800 mm.
Further, the air supply device group comprises at least 4 small air supply devices.
Furthermore, each air grid package is directly supplied with air by one air supply device group unit, a plurality of air supply device group units are connected in parallel to form an air supply device group, and each air supply device group unit is composed of one or more small-sized air supply devices.
Furthermore, each air grid bar is provided with one or more air inlet openings, and each air inlet opening is connected with one or more small-sized air supply devices connected in parallel; the air inlets of the air grids are arranged at the end parts or the peripheral parts of the air grids, and each small air supply device is connected with one or more air inlets of the air grids on the air grid package for air supply.
Furthermore, each air supply device group unit is controlled by an independent switch, and independent air pressure is adjusted.
Furthermore, the end part of the air grid bag is provided with an air inlet which is communicated with each air grid; an air collecting box is arranged between each air grid packet and the air supply device group, and an air inlet of each air grid packet is connected with the air collecting box through a communicating pipe; the air supply device group supplies air to the air collecting box in a centralized manner, and the air collecting box distributes the wind power to each wind grid packet.
Furthermore, the small air supply equipment is arranged on the periphery of the air collecting box or on a box body framework of the air collecting box, and an air outlet of each small air supply equipment is connected with the air collecting box through a hose or a steel pipe.
Furthermore, the air supply device group is installed in the noise reduction fan room in a centralized manner, wherein the noise reduction fan room comprises a machine room frame, a mounting platform, a machine room air inlet and a machine room air outlet, the machine room frame is of a close-closed design, the mounting platform is horizontally arranged in the machine room frame, all small air supply devices of the air supply device group are arranged and installed on the mounting platform, the air outlet of each small air supply device is communicated with the machine room air outlet, namely the small air supply devices suck air from the machine room air inlet, and finally wind power is discharged from the machine room air outlet.
The invention also provides a glass toughening furnace which comprises an upper piece platform, a heating furnace, a cooling section and a lower piece platform, wherein a glass plate is borne by the conveying roller way and sequentially passes through the upper piece platform, the heating furnace, the cooling section and the lower piece platform, the heated glass plate is toughened and cooled in the cooling section, the cooling section carries out cooling treatment on the glass plate by using the air supply equipment, the air grid bags are symmetrically arranged above and below the conveying roller way, and air grid air outlets of the air grid bags face the conveying roller way.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts a plurality of small air supply devices, namely a method of replacing one large fan by a plurality of low-power fans/air pumps, directly or indirectly supplies air to the air grid packet, the small air supply devices have small motors, and have the advantages of quick instant starting and boosting and random starting and stopping, the fans do not need overlong preparation time, the useless power consumption is reduced, the energy consumption is reduced by at least 30 percent, and the invention has obvious energy-saving effect. Meanwhile, the fan is more flexible in type selection, and air can be supplied according to requirements so as to adapt to glass production lines with different specification requirements.
2. Compared with a high-power fan, the small air supply device has much lower individual noise, and the noise value of the combined small air supply device is lower than 80 decibels, so that the working environment is effectively improved, and the sound pollution is reduced.
3. The small air supply device has the advantages that the impeller runs at a high speed and has relatively small throwing power, the service life of the small air supply device is much longer than that of a high-power fan, the service life can reach more than 10 years, the small air supply device is small in size and small in occupied area, and when an individual is damaged, the small air supply device is easy to replace and maintain, better in safety performance and more flexible and convenient to use in actual use.
4. When the air supply device group unit directly supplies air to the air grid packet, the air supply device group unit can be switched to supply air without an air collecting box, independent switch control is carried out among the air supply device group units, independent air pressure adjustment is carried out, and when the glass plate moves forwards, the air supply device group unit in the rear area through which the glass plate passes can be turned off in advance, so that unnecessary electric energy consumption can be avoided, and the energy-saving effect is obvious.
5. The air supply device set is arranged in the noise reduction fan room in a centralized manner, the air supply device set works in the noise reduction fan room, the transmission of sound can be effectively blocked, the influence of noise which is actually transmitted outside on a human body is small, and the influence of noise in a working environment is further improved.
6. The air supply equipment can be applied to a tempering section and a cooling section, and has strong practicability.
In a word, the air supply equipment of the glass tempering furnace provided by the invention has the advantages of energy conservation, low noise, long service life, easiness in installation and maintenance, high safety performance and the like, can effectively reduce the production cost and improve the working environment, and can be widely applied to the cooling section of each glass tempering furnace.
Drawings
Fig. 1 is a structure diagram of a high-power fan wind collecting box type passing + reciprocating type wind supply structure in the prior art.
Fig. 2 is a structure diagram of a high-power fan wind collection box type pure reciprocating type wind supply in the prior art.
Fig. 3 is a schematic view of an air supply device in the first embodiment.
FIG. 4 is a schematic structural view of a grille bag (without a grille bag air inlet mounting opening) in one embodiment.
FIG. 5 is a schematic diagram of a wind grid package according to an embodiment.
Fig. 6 is a schematic structural diagram of an air grid package and an air supply device group unit in the second embodiment.
FIG. 7 is a schematic view of the air supply apparatus applied to the cooling section of the glass tempering furnace in the second embodiment.
FIG. 8 is a schematic view of a cooling section in the glass tempering furnace in the third embodiment.
FIG. 9 is a schematic structural view of a wind grid package (without wind grid package wind inlet installation port) in the fourth embodiment.
FIG. 10 is a schematic view of a cooling section in the glass tempering furnace in the fourth embodiment.
Fig. 11 is a schematic structural diagram of an air grid package and an air supply device group unit in the fifth embodiment.
FIG. 12 is a schematic view of a cooling section in the glass tempering furnace in the fifth embodiment.
FIG. 13 is a schematic view showing the air supply apparatus applied to the cooling section of the glass tempering furnace in the sixth embodiment.
Fig. 14 is an application effect diagram of a noise reduction fan room according to a seventh embodiment of the present invention.
Fig. 15 is a schematic structural diagram of a noise reduction fan room according to a seventh embodiment of the present invention.
Fig. 16 is a simplified cross-sectional view of a noise reducing fan house according to a seventh embodiment of the present invention.
Fig. 17 is another simplified cross-sectional view of a noise reduction fan house according to a seventh embodiment of the present invention.
Fig. 18 is a top view of the noise reduction fan room according to the eighth embodiment of the present invention.
Fig. 19 is a perspective view of a noise reduction fan room according to the eighth embodiment of the present invention.
Fig. 20 is a schematic structural diagram of a small-sized air supply device in the ninth embodiment of the present invention.
Fig. 21 is a schematic structural diagram of a noise reduction fan room according to the ninth embodiment of the present invention.
In the figure, 1, a wind grid packet; 11. air grid bars; 12. the air outlet of the air grid strip; 13. an air inlet of the air grid strip; 14. the air grid wraps the air inlet mounting port; 2. a wind supply device group; 20. a wind supply device group unit; 21. a small air supply device; 22. an air outlet of the fan; 3. an air collecting box; 4. a connecting pipe; 5. a noise reduction fan room; 51. a machine room frame; 511. 52, a plate frame, a mounting platform; 53. an air inlet of the machine room; 54. an air outlet of the machine room; 55. sound insulation cotton; 56. a circuitous sound-insulation grid plate; 57. a cooling tube; 6. a cooling section; 60. a cooling fan; 61. a tempering section; 610. tempering the fan; 62. a cooling section; 620. a cooling fan; 7. a rollgang; 8. and (4) a transfer pipe.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 3 to 12, the present invention provides an air supply device for a glass tempering furnace, including a plurality of air grid packs 1, each air grid pack 1 includes one or more air grid bars 11, and a plurality of air outlets 12 are disposed on the bottom surface of each air grid bar 11; the air supply equipment also comprises an air supply device group 2 for supplying air to the air grid packages 1, each air grid package 1 is directly supplied with air by one air supply device group unit 20, a plurality of air supply device group units 20 are connected in parallel to form the air supply device group 2, and each air supply device group unit 20 is formed by one or more small-sized air supply devices 21. The air supply device units 20 are controlled by independent switches to adjust independent air pressure. The small air supply device 21 adopts a fan or an air pump with the power less than or equal to 50kw and the diameter of an impeller less than or equal to 800mm, one large fan is replaced by a plurality of low-power and high-pressure fans/air pumps, and the total power is approximately matched during replacement.
The plurality of air grid bars are combined into a whole, so that the combined installation of the air grid bars 11 is facilitated, the lifting of the air grid bars is also facilitated, and compared with the connection lifting of each air grid bar, the connection structure for the integral lifting is simplified. The air grid package 1 is arranged on the frame, the lifting mechanism is arranged on the frame, the air grid package 1 is driven to lift, and the air grid package 1 can lift to adapt to glass production with different thickness specifications.
Each air grid 11 is provided with one or more air inlet 13, the air inlet 13 is arranged at the end or the periphery of the air grid 11, and each small air supply device 21 is connected with one or more air inlet 13 of the air grid on the air grid package 1 for air supply.
The air grid package 1 is also at least provided with an air grid package air inlet mounting port 14, the air grid package air inlet mounting port 14 is communicated with one or more air grid strip air inlets 13, an air outlet of the small air supply device 21 is in one-to-one or one-to-many installation butt joint with the air grid package air inlet mounting port 14, and the air grid package air inlet mounting port 14 is arranged to facilitate the installation of interfaces of the air grid package 1 and the air supply device. The small-sized air supply device 21 is connected with the air inlet mounting port 14 of the corresponding air grid packet through the communicating pipe 4, and the communicating pipe 4 is a hose or a steel pipe.
The invention also provides a glass toughening furnace which comprises an upper piece platform, a heating furnace, a cooling section 6 and a lower piece platform, wherein the cooling section comprises a toughening section 61 and a cooling section 62, a glass plate is borne by the conveying roller way 7 and sequentially passes through the upper piece platform, the heating furnace, the cooling section 6 and the lower piece platform, the heated glass plate is rapidly cooled in the toughening section 61 and then enters the cooling section 62 to be continuously cooled, the toughening section 61 uses the air supply equipment to rapidly cool the glass plate, the air grid packs 1 are symmetrically arranged above and below the conveying roller way 7, and the air grid air outlets 12 of the air grid packs 1 face the conveying roller way 7. The cooling section 62 may also use the air supply device described above to further cool the glass sheet.
In the prior art, for a device for supplying air to a cooling section of a glass tempering furnace, as shown in fig. 1, the cooling section 6 includes a tempering section 61 and a cooling section 62, and the tempering section 61 and the cooling section 62 are both composed of a plurality of air grid packs 1 and an air supply fan. The cooling section 62 is usually longer than the tempering section 61, and fans with different powers are respectively adopted for the tempering section 61 and the cooling section 62 to supply air to the air grid package 1.
For example, for thin glass with the thickness of 3mm, quenching and strengthening (toughening) are needed firstly, and then cooling with lower wind pressure is needed, wherein the process parameters are about 90-100s of heating time, 16000pa of toughening wind pressure, 5-10s of toughening time, 2000pa of subsequent cooling wind pressure and more than 20s of cooling time; for example, for thick glass with a thickness of 19mm, low wind pressure tempering is required, and then high wind pressure cooling is required, wherein the process parameters are about 900-1500s for heating time, 300pa for strengthening wind pressure and more than 300s for tempering, about 2000pa for subsequent cooling wind pressure and more than 400s for cooling. The tempering section is usually realized by pure reciprocating type (the tempering section and the cooling section share the whole air grid), through + reciprocating type (the air grid is composed of two areas, and the air supply equipment with 2 air pressures supplies air respectively, the air pressure passing through the section is high, and the air pressure of the reciprocating section is low), continuously through type (the front of the whole air grid section is a tempering area and the back is a cooling area, the two areas supply air respectively by the air supply equipment with different pressures (if a thick plate continuous furnace, the air supply equipment with the same air pressure supplies air), and the continuous conveying of the glass plate is realized in the same way.
For the part 61 of the tempering section, because the tempering section 61 needs to rapidly cool the heated glass so as to generate external stress on the surface of the glass, the requirement on quenching air pressure is very high, in the prior art, the air supply system of the strengthening section 6 adopts one or more (series) high-power or super-high-power fans to integrate air volume and then distribute air supply to the whole air grid (dozens or even dozens of independent air grid nozzles to form the whole air grid) (the fan power is concentrated at 110 KW-315 KW, and for special glass such as fireproof glass, the fan power even needs to reach more than 1000 KW); different glass thickness, required tempering section wind pressure are different, and generally glass thickness is less, and required wind pressure is higher, and fan power is big more. As shown in fig. 1, two high-power toughening fans 610 are adopted to supply air to one air collecting box 3, the power of the toughening fans 610 is more than 110kw, and the air is distributed to each air grid package 1 by the air collecting box 3. For the cooling section 62, because the air grid section for supplying air is longer, the actual length is not limited to the proportional length in the figure, and the power of the cooling fan 620 is also larger, as shown in fig. 1, two high-power cooling fans 620 are used for supplying air to one wind collecting box 3, the power of the cooling fan 620 is more than 110kw, and the wind power is distributed to each air grid package 1 by the wind collecting box 3.
The cooling section 6 shown in fig. 2 is a reciprocating air grid section, i.e. the tempering section and the cooling section share one air grid section, and is supplied with air in multiple frequency bands by a variable frequency high-power cooling fan 60, and simultaneously, air is supplied to an air collecting box first and then distributed to each air grid packet.
However, such a wind supply system has the following drawbacks: 1. the existing fans suitable for the toughening furnace are large fans with 110 kw-315 kw and impeller diameter exceeding 1m, when the fans are used, the accelerated starting time from zero rotating speed to rated rotating speed is long, 20-50 seconds are needed each time, for thin-layer glass, the real toughening use time only needs several seconds to ten seconds (less than or equal to 20 seconds), for example, the glass with the thickness of 3mm, the heating time is 90-100 seconds, the quenching air pressure is 16000pa, the quenching time is 5-10 seconds, the subsequent cooling air pressure is 2000pa, the cooling time is 10-15 seconds, as the cooling time is far shorter than the heating time, the fans are discontinuously started and stopped when the fans are actually used, and the fans have certain standby frequency; however, the long-time preparation time of the fan is actually the idle work, the preparation time (20-50 s) of the large fan exceeds the service time (5-10 s), most of the electric energy is used for the start preparation of the fan, and great electric energy resources are wasted; 2. the heavy high-power (diameter) fan impeller has large throwing power during high-speed operation, frequent accidents of throwing and rotting of the impeller, high danger, low safety and short service life which is generally only 3-5 years; the volume is large (the diameter of the impeller reaches 1.0-1.6 meters), the occupied area is large, and once the impeller is damaged, the impeller is not easy to replace and maintain, and the impeller is inconvenient to use in practice; 3. the high-power fan, the noise is too big during the use, can reach 110 decibels, causes very big harm to operating personnel's hearing.
The air supply equipment provided by the invention is mainly applied to the tempering section 6, but can also be applied to the cooling section 7, namely the whole cooling section, and small air supply devices 21 with different powers, models and numbers are selected.
The air supply equipment can be applied to the production and the manufacture of flat glass and bent glass.
By adopting the technical scheme of the invention, a method of replacing one large fan by a plurality of low-power high-pressure fans/air pumps is adopted, so that a plurality of low-power high-pressure fans/air pumps supply air to the cooling air grid section; the blower/air pump is small in noise and low in noise, so that acoustic pollution is reduced, and safety is greatly improved; and the individual is easy to maintain and replace when damaged, the service life of the whole is longer, the practical application is more portable, and because the air supply device group units are controlled by independent switches and the independent air pressure is adjusted, when the glass plate moves forwards, the air supply device group unit in the rear area through which the glass plate passes can be shut down in advance, thus avoiding unnecessary electric energy consumption and having obvious energy-saving effect.
Example one
As shown in fig. 3 to 5, in the present embodiment, each of the air grid packages 1 includes 5 air grid bars 11, but is not limited thereto, and is mostly within 1 to 8. The number of the wind grid packs 1 is 6, each wind grid pack 1 corresponds to one wind supply device group unit 20, and each wind supply device group unit 20 corresponds to one small wind supply device 21. The air inlet 13 of the air grid bar is arranged at the end part of the air grid bar 11, the front end of the air grid pack 1 is provided with an air inlet mounting port 14 of the air grid pack, the air inlet mounting port 14 of the air grid pack is trumpet-shaped, and the flaring part faces to each air grid bar 11 and is communicated with 5 air grid bars; the necking part of the air grid package air inlet mounting port 14 faces the small air supply device 21, and the air outlet of the small air supply device 21 is in one-to-one installation butt joint with the air grid package air inlet mounting port 14 through the communicating pipe 4.
In the embodiment, 6 small fans with 37KW are used instead of the total power of the air supply fan of the strengthening section of the prior art being 220KW, so that the required air pressure intensity is achieved.
Example two
As shown in fig. 6 and 7, compared with the first embodiment, in the present embodiment, there are 6 wind grid packages 1, each wind grid package 1 corresponds to one wind supply device group unit 20, and each wind supply device group unit 20 corresponds to 5 small wind supply devices 21. The air inlet 13 of the air grid strip is arranged at the end part of the air grid strip 11, 5 air inlet mounting openings 14 of the air grid package are arranged at the front end of the air grid package 1, the air inlet mounting openings 14 of the air grid package are cellular overall, and the air outlet of the small air supply device 21 is in one-to-one installation butt joint with the air inlet mounting openings 14 of the air grid package. (the connecting pipe is not completely shown in the figure to show the structure of the wind grid bag, but should not affect the understanding).
In the embodiment, 30 small fans with 11KW are used instead of the total power of the air supply fan of the strengthening section being 315KW in the prior art, so that the required air pressure intensity is achieved. Of course, different wind pressure requirements can be changed into different fan combinations, and the wind pressure requirements are not completely limited. For example, the total power of the air supply fan of the strengthening section is 315KW, 12 small-sized 26KW fans can be adopted, that is, each air grid pack 11 is supplied with air by 2 small-sized 26KW air grids, and the front end of the corresponding air grid pack 1 is provided with 2 air grid pack air inlet installing ports 14 for ventilation connection.
The apparatus shown in fig. 6 is suitable for the production of thin glass, and is firstly tempered and then cooled, wherein the tempering section 61 is designed in a pass-through manner, i.e. the glass plate directly passes through the tempering section 61 without returning and stopping, and the cooling section 62 is designed in a reciprocating manner, i.e. the glass plate is in reciprocating transmission in the cooling section 62, i.e. the glass plate moves back and forth until the glass plate is cooled to room temperature, and then is conveyed to the next station. The toughening section 61 and the cooling section 62 supply air respectively and independently, and the cooling section 62 supplies air for a centralized high-power fan. The reciprocating conveying cooling section 7 is suitable for small and medium-sized glass factories with low yield, and can effectively save space. Of course, the cooling section 7 may also be directly conveyed by a plurality of cooling fans 620, and the cooling section 7 in this form is suitable for large-scale glass factories with relatively large output, thereby ensuring the production efficiency of large capacity. In another case, the toughening section 6 and the cooling section 7 share one section of conveyor belt, and air is supplied to the toughening process and the cooling process respectively through the variable frequency fan, so that the method is suitable for small-sized glass factories with limited space.
EXAMPLE III
As shown in fig. 8, the air supply apparatus of the first embodiment is applied to both the tempering section 61 and the cooling section 62 of the glass tempering furnace.
Example four
As shown in fig. 9-10, compared with the first embodiment, in the present embodiment, the air grid inlet 13 is disposed at the top of the air grid 11, and each air grid 11 is provided with one air grid inlet 13, which is not limited to only setting one air grid inlet 13, and the shape of the air grid 11 is preferably rectangular or trapezoidal, so as to achieve uniform air distribution, or as shown in the drawings, the air supply effect can also be achieved. In this embodiment, the top end of the air grid package 1 is provided with an air grid package inlet 14, which is in a trumpet shape and communicated with all the air grid strip inlets 13, and the air outlets of the small air supply devices 21 are in one-to-one installation butt joint with the air grid package inlet 14.
In the embodiment, 6 small fans with 37KW are used instead of the total power of the air supply fan of the strengthening section of the prior art being 220KW, so that the required air pressure intensity is achieved. The small air supply device 21 is arranged on a rack of a toughening furnace production line or on the ground or an external fan placing rack.
EXAMPLE five
As shown in fig. 11-12, compared with the fourth embodiment, in the fourth embodiment, there are 6 air grid packages 1, each air grid package 1 corresponds to one air supply device group unit 20, each air supply device group unit 20 corresponds to 5 small air supply devices 21, the air inlet 13 of each air grid bar is arranged at the top of each air grid bar 11, each air grid bar 11 is provided with one air inlet 13 of each air grid bar, meanwhile, an air inlet mounting port 14 of each air grid package is arranged outside each air inlet 13 of each air grid bar, which is 30 in total, the air inlet mounting port 14 of each air grid bar is in a horn shape, and the air outlets of the small air supply devices 21 are in one-to-one mounting butt joint with the air inlet mounting ports 14 of the air grid packages.
In the embodiment, 30 12KW small-sized fans are adopted to replace the strengthening section air supply fan with the total power of 360KW in the prior art, and each small-sized fan is installed with a butt joint interface of an air inlet installation port 14 of an air grid package.
Of course, one small air supply device 21 can be connected with the air inlet mounting ports 14 of the air grid packs through multi-way component shunting such as tee joints or four-way joints for air supply. If use intensive section air feed fan total power for 360KW for the count, still can adopt 12 small-size fans of 30KW, every air grid package 11 is by 2 small-size fan air feeds of 30KW promptly, and every small-size fan is connected with 2/3 air grid package air inlet installing ports 14, can stride even the connection of air grid strip, according to the wind pressure requirement of difference, can change out different fan combinations, and not inject completely. This strip applies equally to the case of the previous embodiment.
EXAMPLE six
As shown in fig. 13, compared with fig. 1, in the present embodiment, the high-power wind turbine in the prior art is modified to be composed of a plurality of small-sized wind supply devices 21. The air supply device comprises an air supply device group 2 for supplying air to all air grid packs 1, wherein the air supply device group 2 consists of a plurality of small air supply devices 21; an air collecting box 3 is arranged between each air grid package 1 and the air supply device group 2, and an air inlet 14 of each air grid package 1 is connected with the air collecting box 3 through a communicating pipe; the air supply device group 2 supplies air to the air collecting box 3 in a centralized manner, and distributes the air force to each air grid packet 1 from the air collecting box 3.
In the sixth embodiment of the invention, the air supply device group 2 for supplying air to all the air grid packs 1 in the tempering section comprises at least 4 small air supply devices 21. The small air supply devices 21 are arranged around the air collecting box 3 or on the box body framework of the air collecting box 3, and the air outlet of each small air supply device 21 is connected with the air collecting box 3 through a hose or a steel pipe.
In this embodiment, 30 small-sized 12KW air feeders 21 are erected to be equivalent to two 180KW fans. Each small air supply device 21 is connected with an air collecting box through a hose or a steel pipe, air is supplied to the air collecting box in a collective mode, and the air collecting box redistributes the wind power to 6 air grid bags. The air collecting box of the present embodiment is a communicated whole, and all the small air supply devices 21 (low-power fans or air pumps) are started and stopped at the same time. Of course, the wind collecting box may also be formed by combining several independent wind collecting areas, each independent wind collecting area may be used for connecting one or more wind grid packs for supplying wind, and the power and model of the small wind supply device 21 in each independent wind collecting area may be different. The small air supply device 21 of each independent air collecting area can be started and stopped in a time-sharing mode. When the glass plate moves forwards, the independent air collecting area of the rear area where the glass plate passes can be closed in advance, so that unnecessary electric energy consumption can be avoided, and the energy-saving effect is obvious.
EXAMPLE seven
As shown in fig. 14-17, compared with the first to sixth embodiments, the present embodiment provides a noise reduction fan room for an air supply system of a glass tempering furnace, the air supply system of the glass tempering furnace includes a plurality of air grid packs 1 and an air supply device group 2 for supplying air to the air grid packs, the air supply device group 2 is centrally installed in the noise reduction fan room 5, wherein the noise reduction fan room 5 includes a machine room rack 51, an installation platform 52, a machine room air inlet 53, and a machine room air outlet 54, the machine room rack 51 is a nearly closed space surrounded by a rack 511, and the rack 511 may be a single-layer steel plate or a sandwich heat preservation steel plate. The steel plate is connected with the steel structure framework through detachable screws or hinges. The machine room air inlet 53 and the machine room air outlet 54 are arranged on the machine room frame 51, wherein the machine room air outlet 54 faces the air grid package 1 and is communicated with the air grid package air inlet of the air grid package 1; the mounting table 52 is transversely arranged in the machine room frame 51, the air supply device group 2 is mounted on the mounting table 52, the mounting table 52 can be composed of 1 layer, 2 layers or multiple layers of cross beams, each layer of cross beam is provided with a fan (air pump) mounting hole (or mounting plate), the fan (air pump) is fixed in the hole (or mounting plate) by screws, and the middle of the screw is provided with a damping elastic cushion block, so that the stable operation of the fan can be guaranteed; the blower outlet 22 of the air supply device 2 is communicated with the machine room outlet 54, that is, the air supply device 2 sucks air from the machine room air inlet 53, and finally discharges wind power from the machine room outlet 54 to supply air to the air grid package 1. The room air inlet 53 is provided at a side/rear or upper side of the room frame 51. In this embodiment, the machine room air inlet 53 is disposed behind the machine room frame 51. And the bottom of the machine room rack is also provided with a steering wheel.
In this embodiment, soundproof cotton 55 is installed on the inner wall of the machine room frame 51. A protective net can be laid in the soundproof cotton 55 to ensure that the soundproof cotton 55 can be stably installed in the machine room. A circuitous sound-proof grid plate 56 is arranged in the passage between the air inlet 53 of the machine room and the air supply device 2. The noise can be effectively controlled in the transmission process, and a good sound insulation effect is achieved. The air inlet 53 of the machine room can be provided with one or more than one air inlet, or can be directly provided with air inlet without a roundabout sound insulation grid plate 56, and the fan room is also suitable for the machine room.
A cooling pipe 57 is arranged in the machine room rack 51, and the cooling pipe 57 is fixed on a channel through which air passes in a surrounding manner, so that heat exchange is facilitated; in the embodiment, the cooling pipe 57 is fixed on the inner wall of the machine room frame 51 in a surrounding manner; the inlet and outlet of the cooling pipe 57 are connected to the outside of the machine room frame 51 and connected to an external refrigerator. The cooling pipe can also be fixed on the shell of the air supply equipment in a mode of rewinding or spiral winding and the like, and the periphery of the cooling pipe can also be provided with heat dissipation sheets so as to achieve a better heat dissipation effect. According to the refrigeration requirement, the cooling pipe and the external refrigerator can be composed of 1 set and a plurality of sets, and the external refrigerator is placed beside the fan room, or externally hung on the side of the fan room, or top-mounted on the top of the fan room.
In this embodiment, the tempering section 61 and the cooling section 62 share one noise reduction fan room 5, the machine room air outlet 54 of the noise reduction fan room 5 is directly connected with the air grid package air inlet 14 of the air grid package 1 through the communicating pipe 4 in a ventilation manner, the communicating pipe 4 penetrates through the machine room air outlet 54, and two ends of the communicating pipe are respectively connected with the air outlets of the air grid package 1 and the air supply device. Certainly, in practical application, the tempering section 61 and the cooling section 62 can correspond to different noise reduction fan rooms 5 and can be flexibly matched for use.
As shown in the embodiment, the air supply device 2 used in the cooling section 6 is formed by combining a plurality of small air supply devices 21, and the small air supply devices 21 are fans or air pumps with power less than or equal to 50kw and impeller diameter less than or equal to 800 mm. As shown in fig. 1 and 2, the air supply device is one or more high-power fans, it can be seen that the high-power fans have a large volume and occupy more space, and the small air supply devices 21 have a small volume and can be stacked upwards, so that the space is saved, and the production line of the toughening furnace preferably adopts the scheme.
In a word, compared with the prior art, the air supply equipment is installed in the noise reduction fan room in a centralized mode to work, the noise reduction fan room is a near-closed space, soundproof cotton is installed in an auxiliary mode, the soundproof grid plate is arranged, noise is effectively absorbed and controlled in the transmission process, and good sound insulation and noise reduction effects are achieved. Meanwhile, the cooling pipe is arranged in the machine room frame, so that heat generated in the running process of the air supply equipment can be effectively absorbed, and the glass plate is prevented from being blown by hot air. The air supply equipment can be formed by combining a plurality of small air supply devices, and compared with a high-power fan, the small air supply devices have much lower individual noise, so that the environmental noise can be further reduced. In addition, the steering wheel is installed at the bottom of the machine room frame, so that the noise reduction fan room can be moved, and the installation and the maintenance of each part are facilitated. In a word, this fan room of making an uproar falls can effectively improve operational environment, and the noise that actually spreads outside is very little to the human influence, has reduced sound pollution, and the practicality is strong.
Example eight
As shown in fig. 18 to 19, in this embodiment, the machine room air outlet 54 of the noise reduction fan room 5 of the cooling section 6 is directly connected with the air grid package 1 through the communication pipe 4 for ventilation, the air collection box 3 can be arranged between the noise reduction fan room 5 of the cooling section 6 and the air grid package 1, the air supply device 2 in the noise reduction fan room 5 is formed by combining a plurality of small air supply devices 21, the noise reduction fan room 5 intensively transmits the wind power to the air collection box 3, and the air collection box 3 distributes the wind power to each air grid package 1 through the communication pipe 4. The cooling section 6 of the present embodiment is a pure reciprocating air grid section, but is not limited to this type of cooling section.
In this embodiment, the machine room air inlet 53 of the noise reduction fan room 5 of the cooling section 6 is disposed on the side surface of the machine room frame 51, but may be disposed behind or above the machine room frame 51. The position of the machine room air inlet 53 is not limited.
The air outlets of the air collecting box 3 correspond to the air inlet mounting openings of the air grid bags one by one, the air inlets of the air collecting box 3 correspond to the machine room air outlets 54, and the number of the machine room air outlets 54 can be more than or less than that of the air outlets of the air collecting box 3.
In the present embodiment, the wind collecting box 3 is disposed outside the noise reduction fan room 5, but may be disposed inside the noise reduction fan room, and supplies the cooling section 6 with wind as a whole.
Example nine
As shown in fig. 21, the noise reduction fan room 5 of the present embodiment includes a plurality of air outlets, the fan air outlet 22 of the small air supply device 21 therein is connected to the adapter tube 8, and the adapter tube 8 passes through the machine room air outlet 54 to protrude outside, and is connected to the air grid bag air inlet 14 through the communication pipe 4. The communicating pipe 4 is a hose, and the adapter pipe 8 is a hard air outlet pipe.
In a word, the air supply equipment of the glass tempering furnace provided by the invention has the advantages of energy conservation, low noise, long service life, easiness in installation and maintenance, high safety performance and the like, can effectively reduce the production cost and improve the working environment, and can be widely applied to the cooling section of each glass tempering furnace.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (10)
1. The air supply equipment of the glass tempering furnace is characterized by comprising a plurality of air grid packages (1) which are oppositely arranged up and down, wherein each air grid package (1) comprises one or more air grid strips (11), and a plurality of air grid air outlets (12) are arranged on the bottom surface of each air grid strip (11); the air supply equipment also comprises an air supply device group (2) for supplying air to the air grid packet (1), wherein the air supply device group (2) consists of a plurality of small air supply devices (21).
2. The air supply equipment of the glass tempering furnace according to claim 1, wherein the small air supply device (21) is a fan or an air pump with power less than or equal to 50kw and impeller diameter less than or equal to 800 mm.
3. A glass tempering furnace air supply apparatus according to claim 2, wherein the air supply means group (2) comprises at least 4 small air supply means (21).
4. The air supply equipment of the glass tempering furnace according to any one of claims 1 to 3, wherein each air grid package (1) is directly supplied with air by one air supply device group unit (20), a plurality of air supply device group units (20) are connected in parallel to form an air supply device group (2), and each air supply device group unit (20) is formed by one or more small air supply devices (21).
5. The air supply equipment of the glass tempering furnace according to claim 4, wherein each air grid bar (11) is provided with one or more air grid bar air inlets (13), the air grid bar air inlets (13) are arranged at the end or the periphery of the air grid bar (11), and each small air supply device (21) is used for connecting one or more air grid bar air inlets (13) on the air grid pack (1) for air supply.
6. The air supply apparatus of a glass tempering furnace according to claim 5, wherein each air supply device group unit (20) is independently controlled by a switch to independently adjust air pressure.
7. The air supply equipment of the glass tempering furnace according to any one of claims 1 to 3, wherein an air grid bag air inlet mounting port (14) is arranged at the end part of the air grid bag (1), and the air grid bag air inlet mounting port (14) is communicated with each air grid (11); an air collecting box (3) is arranged between each air grid package (1) and the air supply device group (2), and an air inlet (14) of each air grid package (1) is connected with the air collecting box (3) through a communicating pipe (4); the air supply device group (2) supplies air to the air collecting box (3) in a centralized manner, and distributes the wind power to each wind grid packet (1) through the air collecting box (3).
8. The air supply equipment of the glass tempering furnace according to claim 7, wherein the small air supply devices (21) are installed around the air collecting box (3) or on the box body framework of the air collecting box (3), and the air outlet of each small air supply device (21) is connected with the air collecting box (3) by a hose or a steel pipe.
9. The air supply equipment of the glass tempering furnace according to claim 5 or 8, wherein the air supply device group (2) is installed in the noise reduction fan room (5) in a centralized manner, wherein the noise reduction fan room (5) comprises a machine room rack (51), an installation platform (52), a machine room air inlet (53) and a machine room air outlet (54), the machine room rack (51) is a nearly closed space defined by plate frames, the installation platform (52) is installed in the machine room rack (51), the small air supply devices (21) of the air supply device group (2) are arranged and installed on the installation platform (52), and the air outlet of the small air supply device (21) is communicated with the machine room air outlet (54), namely the small air supply device (21) sucks air from the machine room air inlet (53) and finally discharges wind power from the machine room air outlet (54).
10. A glass tempering furnace comprises an upper piece platform, a heating furnace, a cooling section and a lower piece platform, wherein a glass plate is borne by a conveying roller way (8) and sequentially passes through the upper piece platform, the heating furnace, the cooling section (6) and the lower piece platform, and the heated glass plate is tempered and cooled in the cooling section (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010038727.4A CN111116027A (en) | 2020-01-14 | 2020-01-14 | Air supply equipment of glass tempering furnace and corresponding glass tempering furnace |
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| CN202010038727.4A CN111116027A (en) | 2020-01-14 | 2020-01-14 | Air supply equipment of glass tempering furnace and corresponding glass tempering furnace |
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| CN111116027A true CN111116027A (en) | 2020-05-08 |
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| CN202010038727.4A Pending CN111116027A (en) | 2020-01-14 | 2020-01-14 | Air supply equipment of glass tempering furnace and corresponding glass tempering furnace |
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Cited By (2)
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| CN115521052A (en) * | 2022-10-12 | 2022-12-27 | 索奥斯(广东)玻璃技术股份有限公司 | Glass tempering production line using double-chamber heating furnace |
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