CN205874205U

CN205874205U - Compulsory convection device of glass tempering furnace thermal cycle

Info

Publication number: CN205874205U
Application number: CN201620585780.5U
Authority: CN
Inventors: 鲁宝聪
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-14
Filing date: 2016-06-14
Publication date: 2017-01-11
Anticipated expiration: 2026-06-14

Abstract

The utility model provides a compulsory convection device of glass tempering furnace thermal cycle, the heating furnace top sets up and sets up an at least heating pipe between the furnace who sets up vent, collection bellows and heating furnace between album bellows and the air supply arrangement, air supply arrangement one side sets up at least one blast pressure case, sets up hot gas conveying pipeline between air supply arrangement and the blast pressure case, blast pressure case below sets up protects the warm tuber pipe, sets up the at least a set of thermal cycle nest of tubes of airing exhaust between top wire spiral in the heating furnace and the ceramic conveyor roller, the thermal cycle is aired exhaust and is set up the oven between nest of tubes import and the guarantor warm air duct outlet and cross the wall coil way, does the thermal cycle is aired exhaust, and three at least copy cast gas ports are reserved to nest of tubes lower part pipe wall equipartition correspond LOW set up above the E glass, the utility model discloses a force to give the heating of glass upper surface blowing hot air, surface heat absorption about the balanced glass, and then improve glass surface quality, no longer need air compressor machine and gas holder, the disinvestment, energy saving and emission reduction can improve productivity and product quality.

Description

A kind of forced convection device of glass tempering furnace thermal cycle

Technical field

This utility model relates to the heating furnace being used in Low emissivity LOW-E glass tempering, especially a kind of glass tempering furnace heat The forced convection device of circulation.

Background technology

At present, the production heating technique of Low emissivity LOW-E glass tempering, mainly glass surface spraying one layer to three layers are prevented Heat radiation film layer, when heating, this film layer heat absorption rate is less than non-coat side, and due to the difference of being heated in two faces of glass, thermal expansion rate is not Synchronize, thus cause glass to be upturned when heating, when swinging in heating furnace, produce scratch on the bottom surface, affect glass surface Quality；

Blower fan forced convertion is to be positioned in high temperature furnace by 4-8 platform about 4KW blower fan, static the highest heat-resisting of heat resisting exhauster Temperature 200 DEG C degree, furnace temperature is that about 700 DEG C of degree, 4-8 Fans wants continual operation, and additional comprehensive energy consumption is higher, and often Fans matches rustless steel air channel or bellows, is easily generated the phenomenons such as material deformation, oxidation, bearing locking in using, and increases Maintenance cost；

Another compressed air heat-exchange system, needs 22-37KW air compressor machine and 10M³The air accumulator of left and right, work Time, when compressed air is by heat exchanger, after compressed air is only preheating to about 400 DEG C, enter back in 700 DEG C of stoves, increase energy Consumption；A part of heat further through a little blower fan from heat exchanger discharge, most furnace heat due to compressed-air actuated enter Entering and discharge body of heater from roller-way gap, causing the significant wastage of heat, this structure energy consumption high yield is low, and is only applicable to list The LOW-E glass of layer plated film；In view of above-mentioned many reasons, it is proposed that a kind of glass tempering furnace thermal cycle forced convection device Heating technique.

Utility model content

The purpose of this utility model is to overcome China's current LOW-E glass production technology mainly to have blower fan forced convertion With compressed air heat-exchange system, 4-8 Fans want continual operation, additional comprehensive energy consumption is higher, with every Fans phase Coupling has rustless steel air channel or bellows, is easily generated the phenomenons such as material deformation, oxidation, bearing locking in using, and increases maintenance cost, The steam that blower fan is filled with in stove due to less than 700 DEG C, enters the compressed air in stove through the compressed air heat of heat exchange, and one Part discharges body of heater from roller-way gap, causes the significant wastage of heat, by reasonably design, it is provided that a kind of glass tempering furnace heat The forced convection device of circulation, this utility model structure is to be forced to the heating of glass top surface blowing hot-air, following table on balance glass Absorbing heat in face, thermal expansion rate synchronizes, and then improves glass surface quality, and this structure also can promote simple glass yield simultaneously, and it is right to force Blower fan and the main air duct of stream device are placed in outside stove, and air channel insulation material wraps up；Compared with blower fan forced convertion and in need not Put blower fan, can open or close at any time according to job demand and close blower fan, reduce energy consumption and reduce fault rate, reduce maintenance cost；With pressure Contracting air heat exchanging system is compared, it is no longer necessary to air compressor machine and air accumulator, reduces up-front investment, the most greatly reduces heat energy wave Take, production capacity is substantially improved.

This utility model to achieve these goals, adopts the following technical scheme that, a kind of glass tempering furnace thermal cycle strong Convection device processed, is by heating furnace, air collecting box, blast pressure case, warming warm-air pipe, air-supply arrangement, electric furnace heating wire, thermal cycle air draft Wall coil road, LOW-E glass composition are crossed in pipe group, heating pipe, pottery rolling, steam conveyance conduit, hot gas pressure conveyance conduit, furnace wall； Horizontally set one row's pottery conveying rolling in the middle part of heating furnace, at least three pottery conveying rolling groups are in a row, and pottery conveying rolling row is above Placing LOW-E glass, in heating furnace, the above and below of pottery conveying rolling is respectively provided with electric furnace heating wire；Heating furnace top arranges collection Bellows, air collecting box is provided above air-supply arrangement, arranges the stove of vent, air collecting box and heating furnace between air collecting box and air-supply arrangement At least heating pipe is set between thorax；Air-supply arrangement side arranges at least one blast pressure case, air-supply arrangement and air-supply pressure Steam conveyance conduit is set between power case；

Warming warm-air pipe is set below blast pressure case, between blast pressure case and warming warm-air pipe, hot gas pressure is set defeated Send pipeline；Between top electric furnace heating wire and pottery conveying rolling in heating furnace, least one set thermal cycle exhaust duct group is set；Thermal cycle Between exhaust duct group import and the outlet of warming warm-air pipe, furnace wall is set and crosses wall coil road；

The uniform reserved at least three group air vents of thermal cycle exhaust duct group bottom tube wall, air vent corresponding LOW-E glass downwards Be arranged above with.

Provide the benefit that: this utility model heats by being forced to glass top surface blowing hot-air, balance glass upper and lower surface Heat absorption, and then improve glass surface quality.This structure also can promote simple glass yield, LOW-E glass production technology master simultaneously Blower fan forced convertion to be had and compressed air heat-exchange system；

The forced convection device of glass tempering furnace thermal cycle of the present utility model combines both the above structure and improves: adopt By hot air circulation in stove, it is only necessary to a 3-6KW blower fan, furnace gas flow 3-6 per minute cubic meter, blast 2-5KP, blower fan Being placed in outside stove with main air duct, air channel insulation material wraps up；Need not internal fan, can open or close at any time according to job demand Close blower fan, reduce energy consumption and reduce fault rate, reduce maintenance cost；It is no longer necessary to air compressor machine and air accumulator, reduces up-front investment, with Time greatly reduce thermal waste, production capacity is substantially improved.

Accompanying drawing explanation

The utility model is described in further detail below in conjunction with the accompanying drawings:

Fig. 1 is, general assembly structural representation；

Fig. 2 is, exhaust duct structure schematic diagram；

Fig. 3 is, general assembly side-looking structural representation；

In Fig. 1 .2.3: heating furnace 1, air collecting box 2, blast pressure case 3, warming warm-air pipe 4, air-supply arrangement 5, electric furnace heating wire 6, Wall coil is crossed in thermal cycle exhaust duct group 7, heating pipe 8, pottery rolling 9, steam conveyance conduit 10, hot gas pressure conveyance conduit 11, furnace wall Road 12, LOW-E glass 13.

Detailed description of the invention

With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings:

Horizontally set one row's pottery conveying rolling 9 in the middle part of heating furnace 1, at least three pottery conveying rollings 9 groups are in a row, and pottery is defeated Sending rolling 9 rows that LOW-E glass 13 is placed above, in heating furnace 1 thorax, the above and below of pottery conveying rolling 9 is respectively provided with electric furnace heating wire 6； Heating furnace 1 top arranges air collecting box 2, and air collecting box 2 is provided above air-supply arrangement 5, arranges logical between air collecting box 2 and air-supply arrangement 5 Between air port, air collecting box 2 and the burner hearth of heating furnace 1, at least heating pipe 8 is set；Air-supply arrangement 5 side arranges at least one Blast pressure case 3, arranges steam conveyance conduit 10 between air-supply arrangement 5 and blast pressure case 3；

Warming warm-air pipe 4 is set below blast pressure case 3, between blast pressure case 3 and warming warm-air pipe 4, hot barometric pressure is set Power conveyance conduit 11；Between top electric furnace heating wire 6 and pottery conveying rolling 9 in heating furnace 1, least one set thermal cycle exhaust duct is set Group 7；Between thermal cycle exhaust duct group 7 import and warming warm-air pipe 4 outlet, furnace wall is set and crosses wall coil road 12；

The uniform reserved at least three group air vents of thermal cycle exhaust duct group 7 bottom tube wall, air vent corresponding LOW-E glass downwards 13 be arranged above with.

Claims

1. a forced convection device for glass tempering furnace thermal cycle, is by heating furnace (1), air collecting box (2), blast pressure case (3), warming warm-air pipe (4), air-supply arrangement (5), electric furnace heating wire (6), thermal cycle exhaust duct group (7), heating pipe (8), pottery rolling (9), wall coil road (12), LOW-E glass (13) composition are crossed in steam conveyance conduit (10), hot gas pressure conveyance conduit (11), furnace wall； It is characterized in that: heating furnace (1) middle part horizontally set one row's pottery conveying rolling (9), at least three pottery conveying rolling (9) compositions one Row, pottery conveying rolling (9) row is placed above LOW-E glass (13), the pottery conveying rolling lower section of (9) and upper in heating furnace (1) thorax Side is respectively provided with electric furnace heating wire (6)；Heating furnace (1) top arranges air collecting box (2), and air collecting box (2) is provided above air-supply arrangement (5), Arrange between air collecting box (2) and air-supply arrangement (5) and arrange at least one between vent, air collecting box (2) and the burner hearth of heating furnace (1) Root heating pipe (8)；Air-supply arrangement (5) side arranges at least one blast pressure case (3), air-supply arrangement (5) and blast pressure case (3) steam conveyance conduit (10) is set between.

2. according to the forced convection device of a kind of glass tempering furnace thermal cycle described in claim 1, it is characterised in that: air-supply Forbay (3) lower section arranges warming warm-air pipe (4), arranges hot gas pressure defeated between blast pressure case (3) and warming warm-air pipe (4) Send pipeline (11)；Between top electric furnace heating wire (6) and pottery conveying rolling (9) in heating furnace (1), least one set thermal cycle row is set Airduct group (7)；Between thermal cycle exhaust duct group (7) import and warming warm-air pipe (4) outlet, furnace wall is set and crosses wall coil road (12).

3. according to the forced convection device of a kind of glass tempering furnace thermal cycle described in claim 1, it is characterised in that: heat is followed The uniform reserved at least three group air vents of ring exhaust duct group (7) bottom tube wall, above air vent corresponding LOW-E glass (13) downwards Arrange.