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Radiation heating furnace with external circulating device

A technology of radiation heating and external circulation

Inactive Publication Date: 2010-12-08
杭州精工机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a radiation heating furnace with an extracorporeal circulation device, which can be remade or upgraded to the existing ordinary radiation heating furnace, with simple scheme and low cost; it solves the problem of low-E glass and Anti-radiation glass has long heating time, low heat transfer efficiency, and poor product quality

Method used

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  • Radiation heating furnace with external circulating device
  • Radiation heating furnace with external circulating device
  • Radiation heating furnace with external circulating device

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as figure 1 As shown, a radiation heating furnace with an extracorporeal circulation device includes a furnace body 1 and an extracorporeal circulation device located outside the furnace body 1. The furnace body 1 consists of a liftable upper furnace body 2 and a lower furnace body 3 fixed on the ground. The upper furnace body 2 and the lower furnace body 3 are respectively provided with an upper heating unit 4 and a lower heating unit 5, and a transmission roller table 6 for conveying LOW-E glass is arranged between the upper heating unit 4 and the lower heating unit 5; The circulation device includes a hot air compressor 18, an air storage tank 19, a heat exchanger 7, an induced draft fan 8, an air suction pipe 9, an upper air injection pipe 10, a lower air injection pipe 11 and connecting pipelines;

[0027] The heat exchanger 7 includes an inner chamber 12 and a heat exchange element 13 arranged in the inner chamber 12, the air inlet 14 of the inner chamber 12 ...

Embodiment 2

[0034] The heat exchanger in the radiation heating furnace with extracorporeal circulation device of the present invention can also be another structural device.

[0035] Such as Figure 5 As shown, the inner wall of the heat exchanger 7 is closely attached to an insulation layer 22, so as to reduce the heat loss of the gas inside the heat exchanger 7;

[0036] The heat exchanger 7 includes an inner cavity 12 and a heat exchange element 13 arranged in the inner cavity 12, the air inlet 14 of the inner cavity 12 communicates with the suction pipe 9 inserted into the upper furnace body 2, and the air outlet 15 of the inner cavity 12 It communicates with the induced draft fan 8; the air intake pipe 16 of the heat exchange element 13 communicates with the air storage tank 19, and the air outlet pipe 17 of the heat exchange element 13 communicates with the upper gas injection pipe 10 inserted into the upper furnace body 2;

[0037] Such as Figure 6 As shown, the inner cavity 12 in...

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Abstract

The invention discloses a radiation heating furnace with an external circulating device. The furnace comprises a furnace body and the external circulating device on the outer side of the furnace body, wherein the furnace body consists of an elevating upper furnace body and a lower furnace body which is fixed on the ground; an upper heating unit and a lower heating unit are correspondingly arranged in the upper furnace body and the lower furnace body; a transmission roller way for conveying glass is arranged between the upper heating unit and the lower heating unit; and the external circulating device comprises an air compressor, an air storage tank, a heat exchanger, an induced draft fan, an air suction pipe, an upper gas ejector pipe and a lower gas ejector pipe and connecting lines thereof. The external circulating device of the invention is used, so that convective heating of glass is added based on radiation heating, the heating time of LOW-E glass and anti-radiation glass is shortened, and energy consumption is lowered to save energy; and heat is exchanged between cold and hot air to uniformly heat the upper and lower surfaces of the LOW-E glass and the anti-radiation glass, so that rejection rate is reduced, and product quality is improved and reaches the national standard of tempered glass.

Description

technical field [0001] The invention relates to a radiation heating furnace, in particular to a radiation heating furnace with an extracorporeal circulation device. Background technique [0002] Radiation heating furnaces currently on the market heat glass mainly by radiation heating, supplemented by conduction heating. Specifically, the infrared light emitted when the electric heating wire is energized is used to directly radiate and heat the upper and lower surfaces of the glass plate, and the surface is assisted to heat the lower surface of the glass plate through conduction. [0003] When producing glass with high reflectivity and transmittance, this heating method will have the problems of long heating time and low heat transfer efficiency. Especially when processing LOW-E glass and anti-radiation glass, the film layer on the upper surface of the glass will strongly reflect the radiant heat from the upper heating element, and the lower heating element will heat the gla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B27/012
Inventor 姚敏
Owner 杭州精工机械有限公司
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