Cooling process and system for liquid quenching medium
A technology of quenching medium and liquid cooling medium, applied in the field of heat treatment, can solve the problems of waste of water resources, no recycling, and the water cooling capacity cannot meet the requirements of workpiece quenching efficiency, so as to improve quenching efficiency, reduce energy consumption, and reduce volume. Effect
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Embodiment 1
[0044] see figure 1 As shown, the present embodiment provides a cooling process for a liquid quenching medium, which is mainly used in heat treatment equipment. In this heat treatment equipment, the workpiece 17 after the heat treatment in the vacuum furnace 14 is transferred to the feeding platform 15 by a manipulator, and then placed on the lifting cylinder The effect of 16 is reduced by immersing in the quenching tank 2 for quenching and cooling. During the continuous quenching process of the workpiece 17, the temperature of the liquid quenching medium in the quenching tank 2 increases, resulting in a decrease in the quenching quality and efficiency of the workpiece 17. Therefore, it is necessary to treat the high temperature The liquid quenching medium is cooled in real time to meet the quenching requirements of the workpiece 17 .
[0045] read on figure 1 As shown, this embodiment provides a liquid quenching medium cooling process, the main technical solution of which is...
Embodiment 2
[0049] see figure 2 As shown, this embodiment provides a method for recycling the gaseous cooling medium after heat exchange, which is used in the cooling process of the liquid quenching medium described in Example 1 to fully utilize the cooling capacity of liquid carbon dioxide or liquid nitrogen , to maximize the utilization of cooling capacity.
[0050] Such as figure 2 As shown, in this example, by CO 2 The liquid inlet is charged into the first storage tank 4 with liquid carbon dioxide in advance, and the filling amount accounts for at least 60% of the volume of the storage tank. High-pressure gas is used as the transmission power, and the high-pressure gas adopts 3.3MPa high-pressure air, and a certain pressure of high-pressure gas is passed into the first storage tank 4, and the liquid cooling medium in the first storage tank 4 is pressure-transmitted to the quenching furnace. Heater3. At the same time, the second storage tank 5 is used to receive the gaseous cool...
Embodiment 3
[0053] see figure 2 As shown, in order to strengthen the cooling and liquefaction speed of gaseous carbon dioxide in the storage tank, this embodiment provides a method for recycling the gaseous cooling medium after heat exchange, so as to make full use of the cooling capacity of liquid carbon dioxide or liquid nitrogen to realize cooling. Maximize capacity utilization.
[0054] Different from the above-mentioned embodiment 2, this embodiment uses high-pressure gas to send the liquid cooling medium in the first storage tank 4 through the second injection mechanism 8 and spray it into the second storage tank 5, and utilizes throttling to expand The principle is to reduce the temperature of the gaseous cooling medium received in the second storage tank 5 and convert it into a liquid cooling medium for recycling.
[0055] A first injection mechanism 7 is installed on the top of the first storage tank 4 , and a second injection mechanism 8 is installed on the top of the second s...
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