Antifreeze method for cooling circulating water system of vacuum furnace and intermediate frequency furnace
A technology for cooling circulating water and intermediate frequency furnaces, which is applied to furnaces, furnace components, furnace control devices, etc., can solve the problems of shortening the life of the main water pump, waste of power resources, freezing of pipe networks, etc., saving power resources, and strong safety and reliability. , the effect of simple maintenance and operation
Active Publication Date: 2015-08-19
LAIWU IRON & STEEL GRP
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Problems solved by technology
To sum up, there is an existing antifreeze device for the cooling system of the intermediate frequency furnace, which wastes power resources, frequently starts the main water pump, and reduces the life of the main water pump. When no one is on duty, the electrical equipment fails, the circulating water stops circulating, and the entire pipe network It will freeze, the consequences will be unimaginable
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[0012] The present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings, but is not limited thereto.
[0013] An antifreeze method for the cooling circulating water system of a vacuum furnace and an intermediate frequency furnace, comprising a softening water tank outlet valve switch 1, a main water pump outlet valve switch 2, a filter valve switch 3, a furnace coil water inlet valve switch 7, and a water-cooled electrical cabinet water inlet Valve switch 8, emergency water tower valve switch 11, cooling water tower 14, softened water tank 15, main water pump 16, filter 17, screw compressor 18, furnace coil 19, water-cooled electrical cabinet 20, return water pump 21, return water tank 22 and The cooling circulating water system that accident water tower 23 constitutes, the method steps are as follows:
[0014] 1. Install the water discharge ball valve switch of the main water inlet pipe in the cooling circulating water ...
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The invention relates to an anti-freezing method for a cooling circulation water system of a vacuum furnace and a medium-frequency furnace. The method comprises the steps of 1, mounting a main water inlet pipe water releasing ball valve switch (4), a main water returning pipe water releasing ball valve switch (9), a water returning pump water releasing ball valve switch (10), a compression air interface ball valve switch (5), a compression air pipe ball valve switch (6), a compression air rubber pipe (12) and a compression air hose joint (13) in the circulation water system; 2, blowing and emptying water cooled electrical cabinets at branch pipelines till no water vapor is exhausted when a person observes that a pressure gauge in the pipeline achieves 0.7MPa; 3, opening water releasing valves of a main water pump, a water returning pump and a filter and releasing the rest circulation water in the same; 4, opening the main water inlet pipe water releasing ball valve switch (4), the main water returning pipe water releasing ball valve switch (9) and the water returning pump water releasing ball valve switch (10) and keeping the same at the normal opening state. The circulation water is prevented from being remained in a circulation loop, and the water circulation equipment parts are enabled not to be iced and cracked by freezing.
Description
technical field [0001] The invention relates to an antifreeze method for a cooling circulating water system of a vacuum furnace and an intermediate frequency furnace, and belongs to the technical field of metallurgical equipment. Background technique [0002] At present, domestic small-scale smelting equipment such as medium-vacuum furnaces and intermediate-frequency furnaces are not like large-scale smelting equipment that smelts around the clock. They arrange production and smelting according to the needs of production or experimental tasks. Therefore, when the northern region enters winter, when the vacuum furnace and the intermediate frequency furnace are shut down, the circulating water freezes and freezes, which freezes and cracks the equipment components of the water circulation, causing equipment damage or scrapping accidents. In response to the above technical deficiencies, an antifreeze device has been developed in the industry. Chinese patent CN201837263 discloses...
Claims
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IPC IPC(8): F27D17/00F27D19/00
CPCY02P10/25
Inventor 毕永谦魏灿珉张继虎赵立霞
Owner LAIWU IRON & STEEL GRP