Mesh belt type gas brazing furnace and energy saving method

A technology of brazing furnace and mesh belt, which is applied in furnaces, furnace components, welding equipment, etc., can solve the problems of low thermal efficiency, waste of hot exhaust gas, and high energy consumption, so as to reduce natural gas consumption, avoid waste, The effect of improving thermal efficiency

Inactive Publication Date: 2018-03-30
扈杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Mesh belt type gas brazing furnace has no preheating section, the workpiece directly enters the heating section for heating, the burner has high power and energy consumption;
[0005] 2. The working temperature of the hea

Method used

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  • Mesh belt type gas brazing furnace and energy saving method
  • Mesh belt type gas brazing furnace and energy saving method
  • Mesh belt type gas brazing furnace and energy saving method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment provides a mesh belt type gas brazing furnace, including a feed section, a brazing furnace heating furnace body 1 and a heating furnace body muffle 12 arranged in the brazing furnace heating furnace body 1, the brazing furnace A preheating section 4 is connected between the furnace heating furnace body 1 and the feeding section, and a heat flow recovery channel is provided between the preheating section 4 and the brazing furnace heating furnace body 1, and a preheating section 4 is provided in the preheating section 4. The muffle 23 in the hot section, the muffle 23 in the preheating section is provided with protective gas.

[0031] The hot gas discharged from the hot gas outlet 11 of the heating furnace body (the temperature is about 900°C) first passes into the preheating section 4 to heat the workpiece and the mesh belt, and the workpiece and mesh belt in the preheating section 4 enter the heating furnace body 1 after the temperature rises. , for heat...

Embodiment 2

[0033] On the basis of Example 1, this example provides a mesh belt type gas brazing furnace, the preheating section muffle 23 is made of stainless steel (temperature resistance 700-900°C), and the brazing furnace heats the furnace body 1 The inner heating furnace body muffle 12 is made of high temperature resistant stainless steel, and the temperature resistance is greater than 1000 degrees.

[0034] The muffle 23 in the preheating section is made of ordinary stainless steel. Since the temperature in the preheating section is low, the cost can be reduced by using ordinary stainless steel.

Embodiment 3

[0036] On the basis of Embodiment 1, this embodiment provides a mesh belt type gas brazing furnace, the exhaust gas outlet of the preheating section is connected with a secondary heat recovery device, and the secondary heat recovery device is connected with the brazing furnace heating furnace body 1 The burner 15 on the side communicates.

[0037] The secondary utilization of heat by the secondary heat recovery device further improves the thermal efficiency of the burner 15 of the heating furnace body 1 .

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PUM

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Abstract

The invention provides a mesh belt type gas brazing furnace and an energy saving method. The mesh belt type gas brazing furnace comprises a feeding section, a brazing furnace heating furnace body anda heating furnace body muffle, wherein a preheating section is arranged between the brazing furnace heating furnace body and the feeding section in a communicating mode, a heat flow recovery channel is arranged between the preheating section and the brazing furnace heating furnace body, a preheating section muffle is arranged in the preheating section, and shielding gas is injected to the preheating section muffle. By additionally arranging the preheating section, workpieces and a mesh belt of the preheating section is heated by hot gas exhausted out of the heating furnace body, part of heat is transmitted to a nozzle combustion-supporting air through a heat exchanger, the temperature of the combustion-supporting air is increased, the nozzle actual using power of the heating furnace body is reduced, the natural gas consumption is reduced, the production cost is reduced, and the situation that heat is scattered to air to cause waste is avoided.

Description

technical field [0001] The invention belongs to the technical field of brazing furnaces, and in particular relates to a mesh-belt gas brazing furnace and an energy-saving method. Background technique [0002] The mesh belt brazing process is to fix the workpiece and different forms of solder together in a certain way, put them into the feeding end of the brazing furnace, and bring the workpiece into the brazing furnace by the mesh belt according to the requirements of the brazing process. The solder melts the solder to fill the gaps of the workpiece at a certain heating rate and cooling rate to form a full and bright weld. At present, the heating furnace body adopts electric heating and gas burner heating, but the cost of electric heating is higher than that of gas heating. Therefore, in In areas with tight power supply and rich gas resources, gas heating is generally used to save operating costs. [0003] However, when heating with a gas brazing furnace, there are the foll...

Claims

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Application Information

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IPC IPC(8): B23K3/04B23K1/008F27D17/00
CPCY02P10/143B23K3/04B23K1/008F27D17/004
Inventor 扈杰
Owner 扈杰
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