CN201473446U

CN201473446U - Toughened glass homogenizing furnace

Info

Publication number: CN201473446U
Application number: CN2009202031371U
Authority: CN
Inventors: 杜宏疆; 张宝成; 张忠义
Original assignee: LIAONING NORTH GLASS MACHINERY CO Ltd
Current assignee: LIAONING NORTH GLASS MACHINERY CO Ltd
Priority date: 2009-09-09
Filing date: 2009-09-09
Publication date: 2010-05-19
Anticipated expiration: 2019-09-09

Abstract

A toughened glass homogenizing furnace relates to the structural improvement on a homogenizing furnace for performing self-explosive prevention processing to the toughened glass. The utility model provides the toughened glass homogenizing furnace which not only saves energy and but also improves production efficiency. The toughened glass homogenizing furnace comprises a furnace body; a furnace door and an air cooler are arranged at two ends of the furnace body respectively; the toughened glass homogenizing furnace adopts the structural features that a thermal insulation layer is arranged at the periphery of the furnace body; thermal circulation air flues are arranged in the thermal insulation layers on two sides and at the top of the furnace body; a heater and a circulating fan are arranged at the bottom and at the top of the thermal circulation air flues respectively; and a cooling circulation air flue is arranged between thermal circulation air flues at the top of the furnace body.

Description

Toughened glass homogeneous stove

Technical field:

The utility model relates to toughened glass is prevented that the homogeneous furnace structure that self-destruction is handled improves.

Background technology:

Equipment of the present utility model is that toughened glass is prevented the specific equipment that self-destruction is handled; Glass behind the tempering still can be revealed under the condition of no external force effect.Reason is because nickelous sulfide is high temperature attitude (α-Nis) in the heating phase that tempering is handled.The quick cooling stages high temperature attitude of handling at tempering (α-Nis) has little time (β-Nis) change to cold state.This crystal conversion exists in the more than ten years after install from the several minutes after handling always.((β-Nis) can cause volumetric expansion breaks the stress equilibrium of glass inside to α-Nis) change into, causes toughened glass self-explosion.Make the toughened glass after the processing no longer produce self-destruction.Toughened glass is placed in the machining process of heating, be incubated, lower the temperature in the homogeneous stove.The security and the reliability of toughened glass have been improved greatly.

The toughened glass product applications is very extensive: building glass, various vehicle glasses, solar battery glass, BIPV glass or the like.

Up to the present, general general applications toughened glass does not carry out homogenization treatment.But along with the application of toughened glass, for example in the high-end field; Bullet train, solar cell, BIPV glass or the like.No matter from use properties, economy and security all respects all require toughened glass that enough securities and reliability must be arranged.In recent years, lot of domestic and international device fabrication commercial city was used for the processing units of toughened glass homogenization treatment in development.

Because the homogenization treatment process of toughened glass requires very high to temperature homogeneity and the variation of intensification rate of temperature fall.Otherwise do not reach due effect.Therefore all there is the energy consumption height in the toughened glass homogenizer that comes out now, the problem that working (machining) efficiency is low.Reach the uniform purpose of temperature in the course of processing by slowly adding gentle cooling for a long time.

The utility model content:

The utility model is exactly at the problems referred to above, and toughened glass homogeneous stove a kind of not only energy-conservation but also that enhance productivity is provided.

For achieving the above object, the utility model adopts following technical scheme, the utility model comprises body of heater, the two ends of body of heater are respectively arranged with fire door, cold blast engine, its structural feature is to be provided with thermal insulation layer in the body of heater periphery, be provided with the thermal cycling air channel in the thermal insulation layer at body of heater both sides and top, the bottom in thermal cycling air channel, top are respectively arranged with well heater, recirculation blower, are provided with the refrigeration cycle air channel between the thermal cycling air channel, top of body of heater.

The beneficial effects of the utility model:

1, the utility model can reach good temperature homogeneity:

Because design had guide plate on the thermal cycling air channel in stove was imported and exported, make the air flow line of recirculated air parallel with glass surface, the bar shaped outlet of guide plate is alignd with each sheet glass clearance space, makes the circulating current non-resistance evenly by each sheet glass at interval, guarantees that air velocity is identical.Reach the temperature difference minimum between each different surfaces of the glass of fast and each different positions of thermal equilibrium speed and same block of glass.The design in thermal cycling air channel meets air flow structure, reaches best circulating effect.

2, in the insulation process segment, can reach good temperature control precision:

Owing to be divided into five sections at the body of heater length direction, every section independent heating temperature controlling system and heat balance system realize that the each point temperature homogeneity can be controlled in the stove ± 1.5 ℃ with interior (and the same category of device temperature-controlled precision is at ± 3 ℃), can effectively guarantee quality product, enhance productivity.

3, accomplish the thermosteresis minimum in heating and holding stage:

Because the utility model recirculation blower is installed in the thermal insulation layer, has eliminated the thermosteresis that recirculation blower produces outside thermal insulation layer.Reduce energy consumption and shortened time process-cycle.

4, shorten time process-cycle, enhance productivity:

Owing to adopted cold blast engine, reach the purpose of discharging different heats at different temperature-fall periods by changing the cold blast engine air flow rate, make the rate of temperature fall of high temperature section and low-temperature zone identical.Shortened the time that cools greatly.The utility model equipment time process-cycle when loading capacity 5000Kg is 78 hours.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is that the A of Fig. 1 is to view;

Fig. 3 is the B-B sectional view of Fig. 1;

Fig. 4 is the C-C sectional view of Fig. 2.

Embodiment:

The utility model comprises body of heater 2, the fire door 1 that the two ends of body of heater 2 are provided with respectively, cold blast engine 4, be provided with thermal insulation layer 7 in body of heater 2 peripheries, be provided with thermal cycling air channel 8 in the thermal insulation layer 7 at body of heater 2 both sides and top, the bottom in thermal cycling air channel 8, top are respectively arranged with well heater 6, recirculation blower 3, are provided with refrigeration cycle air channel 9 between the thermal cycling air channel, top 8 of body of heater 2.

The ventilation hole 10 in thermal cycling air channel, top 8, refrigeration cycle air channel 9 is arranged on the body of heater 2 top guide plates 11.

The utility model can adopt electric automatic control, and this is the current techique that colleague's those of ordinary skill is realized, is not giving unnecessary details at this.

Below in conjunction with a description of drawings course of action of the present utility model:

Under fire door 1 opened condition, glass 12 to be processed is placed on and pushes in the body of heater 2 on the vehicle frame 13; Fire door 1 is closed and is locked, heater 6 and recirculation blower 3, beginning heat temperature raising process; Temperature rise rate is by procedure auto-control.After reaching the temperature of processing requirement, stop heating, close well heater 6, enter holding stage.Recirculation blower 3 works in the insulating process, and heat supplement is by procedure auto-control.After reaching the soaking time of process stipulation, open cold blower fan 4, rate of temperature fall is by procedure auto-control.

Claims

1. toughened glass homogeneous stove, comprise body of heater (2), the fire door (1) that the two ends of body of heater (2) are provided with respectively, cold blast engine (4), it is characterized in that being provided with thermal insulation layer (7) in body of heater (2) periphery, be provided with thermal cycling air channel (8) in the thermal insulation layer (7) at body of heater (2) both sides and top, bottom, the top in thermal cycling air channel (8) is respectively arranged with well heater (6), recirculation blower (3), is provided with refrigeration cycle air channel (9) between the thermal cycling air channel, top (8) of body of heater (2).

2. toughened glass homogeneous stove according to claim 1 is characterized in that the ventilation hole (10) of thermal cycling air channel, top (8), refrigeration cycle air channel (9) is arranged on body of heater (2) the top guide plate (11).