Cooling structure of Roots vacuum pump
A technology of Roots vacuum pump and cooling structure, which is applied to parts of pumping devices for elastic fluids, pump elements, rotary piston type/swing piston type pump components, etc., and can solve problems such as vacuum pumps not working properly
Active Publication Date: 2016-01-20
B TOHIN MACHINE JIANGSU
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Problems solved by technology
But in the low pressure state, the heat absorbed by the rotor is not easy to dissipate, and when the pressure of the vacuum pump exceeds the specified value, the temperature of the rotor is too high, which will cause the gap to be too small, so that the vacuum pump cannot work normally.
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[0016] Below the present invention will be further described in conjunction with the embodiment in the accompanying drawing:
[0017] Such as figure 1 , a cooling structure of a Roots vacuum pump, including a cylinder body 13 and an inner cavity 14, two mutually independent cooling water tanks are respectively arranged on the front and rear end covers of the cylinder body 13, and these four mutually independent cooling water tanks pass through The cooling water pipes are connected, and the cooling water is forcibly introduced to perform forced water cooling on the cylinder body.
[0018] The four mutually independent cooling water tanks are the first cooling water tank 1 , the second cooling water tank 4 , the third cooling water tank 7 and the fourth cooling water tank 10 .
[0019] A first water outlet 2 and a first water inlet 3 are connected to the first cooling water tank 1 .
[0020] The second cooling water tank 4 is connected with a second water outlet 5 and a second...
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A cooling structure of a roots vacuum pump comprises a cylinder body (13) and an inner cavity (14), and is characterized in that a front end cap and a rear end cap of the cylinder body (13) are respectively provided with two cooling water tanks which are independent from each other; the four cooling water tanks which are independent from one another are communicated with one another through cooling water tubes; and cooling water is forcedly led into the cylinder body to forcedly cool the cylinder body. The cooling structure of the roots vacuum pump forcedly cools the vacuum pump. The front end cap and the rear end cap of the cylinder body of the cooling structure are respectively provided with the two cooling water tanks which are independent from each other, the four cooling water tanks which are independent from one another are communicated with one another through the cooling water tubes, and the cooling water is forcedly led into the cylinder body to forcedly cool the cylinder body.
Description
technical field [0001] The invention relates to a cooling structure of a Roots vacuum pump, which belongs to the technical field of vacuum pumps. Background technique [0002] At present, the Roots vacuum pump is a rotary variable displacement vacuum pump. When the vacuum pump is running, the discontinuous gas is compressed by the rotor and then discharged, so that there is a large working pressure difference between the inlet and outlet of the pump body. Because the Roots vacuum pump The temperature rise of the pump is directly related to the compression ratio and efficiency. Usually, the heat generated by the compressed gas is dissipated through the pump body. But in the low pressure state, the heat absorbed by the rotor is not easy to dissipate, and when the pressure of the vacuum pump exceeds the specified value, the temperature of the rotor is too high, which will cause the gap to be too small, so that the vacuum pump cannot work normally. Contents of the invention ...
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IPC IPC(8): F04C29/04
Inventor 孙震宜彭思琼
Owner B TOHIN MACHINE JIANGSU