Furnace cooling gas system of vacuum gas quenching furnace for heat treatment
A technology of cooling gas and gas quenching, which is applied in heat treatment equipment, heat treatment process control, manufacturing tools, etc. It can solve the problems of large differences in product surface shape, equipment is not suitable for full-load work, and uneven cooling speed, so as to increase the furnace capacity. , uniform cooling effect, and the effect of improving work efficiency
Active Publication Date: 2019-01-22
江苏石川岛丰东真空技术有限公司
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Problems solved by technology
[0002] At present, the gas cooling system of most of the vacuum gas quenching furnaces inside and outside uses open air inlet and outlet channels or grid-type air inlet and outlet channels to circulate the cooling gas. This method makes the cooling speed in the heating area uneven, and the cooling speed in some areas is obviously slower. Low, the equipment is not suitable for full-load work, and the products of the same furnace have the problem of large differences in surface shape
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[0023] Figure 1-3 A furnace cooling gas system of a vacuum gas quenching furnace for heat treatment according to an embodiment of the present invention is schematically shown. Such as Figure 1-3 As shown, the furnace cooling gas system of the vacuum gas quenching furnace for heat treatment includes a furnace body 1 , a control system, a heating chamber 2 and a heat exchanger 3 located in the furnace body 1 .
[0024] The inner cavity of the furnace body 1 includes a front chamber 11 and a rear chamber 12 . An air inlet 41 and an air outlet 42 are provided between the front chamber 11 and the rear chamber 12 . The air inlet 41 is located in the middle of the rear chamber 12 to facilitate sending hot gas into the rear chamber 12 . The air outlet 42 is located at the upper part of the rear chamber 12 . It is convenient to send the cooling gas into the heating chamber 2 . The switching states of the air inlet 41 and the air outlet 42 are opposite. The air inlet 41 and the ...
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The invention discloses a furnace gas cooling system of a vacuum gas quenching furnace for heat treatment. The furnace gas cooling system comprises a furnace body, a heating chamber and a control system, wherein the inner chamber body of the furnace body comprises a front chamber and a rear chamber, and a gas inlet and an air outlet are formed between the front chamber and the rear chamber; a centrifugal fan is arranged at the gas inlet, and a heat exchanger is arranged in the rear chamber; a plurality of electric guide plates are arranged on the inner wall of the furnace body, a plurality of air cylinders are arranged on the outer wall of the furnace body, and the electric guide plates are connected with the air cylinders; a plurality of thermocouples are arranged in the heating chamber, an air inlet door is arranged at the top of the heating chamber, and an air outlet door is arranged at the bottom of the heat chamber; the electric guide plates are respectively arranged at the positions corresponding to the air inlet door and the air outlet door; the control system is connected with the thermocouples and is connected with the air cylinders through electromagnetic valves; and the thermocouples upload the received data to the control system, and the control system adjusts the guide angles of the guide plates through the air cylinders according to the data. The cooling effect in the heating chamber is uniform, and the rear side of the heating chamber is prevented from locally generating a heating dead corner.
Description
technical field [0001] The invention belongs to the field of cooling gas devices, and more specifically relates to a furnace cooling gas system of a vacuum gas quenching furnace for heat treatment. Background technique [0002] At present, the gas cooling system of most vacuum gas quenching furnaces inside and outside adopts open air inlet and outlet channels or grid-type air inlet and outlet channels to circulate the cooling gas. This method makes the cooling speed in the heating area uneven, and the cooling speed in some areas is obviously slower. Low, so that the equipment is not suitable for full-load work, and the products of the same furnace have the problem of large differences in surface shape. Contents of the invention [0003] The object of the present invention is to provide a furnace cooling gas system for a vacuum gas quenching furnace for heat treatment which can uniformize the cooling effect in the heating area. [0004] According to one aspect of the prese...
Claims
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IPC IPC(8): C21D1/74C21D11/00
CPCC21D1/74C21D11/00
Inventor 罗意杨晔袁建锋
Owner 江苏石川岛丰东真空技术有限公司