Divided-flow vacuum pump unit water cooling device

Abstract

The invention relates to a divided-flow vacuum pump unit water cooling device which comprises a main water inlet pipe, a plurality of vacuum pump cooling units and a main control valve. Each vacuum pump cooling unit comprises a water inlet branch valve, a water inlet branch pipe, a vacuum pump, a water outlet branch pipe and a water outlet branch valve. The water inlet branch pipe is connected on the main water inlet pipe through the water inlet branch valve, the water outlet branch pipe is connected on the main water inlet pipe through the water outlet branch valve, and the main control valve is arranged between the water inlet branch pipe and a joint of the water outlet branch pipe and the main water inlet pipe. Compared with the prior art, the cooling water quantity consumed by the vacuum pump cooling device with the structure is saved by 60-70% on the premise of ensuring the normal work of the vacuum pump; and not only can the increased temperature of the vacuum pump be ensured to be lower than the standardized operating temperature of the vacuum pump, but also water resources are greatly saved.

Description

Technical field: [0001] The invention relates to a cooling device of a vacuum pump unit, in particular to a cooling device of a split-flow vacuum pump unit. Background technique: [0002] Rotary vane vacuum pump is one of the most basic vacuum obtaining equipment in vacuum technology. Rotary vane vacuum pumps are mostly small and medium-sized pumps, which can be divided into single-stage and double-stage. The so-called two-stage is to connect two single-stage pumps in series in structure. Bipolar rotary vane vacuum pump (commonly known as 2X vacuum pump) is the basic equipment used to pump out the gas in a specific sealed container, so that the container can obtain a certain degree of vacuum. The vacuum degree of the double-stage vacuum pump of the same specification is higher than that of the single-stage. Two-stage rotary vane pump can directly obtain 6.0×10 -2 The vacuum degree below Pa can be used as a backing pump for other vacuum equipment, and can be used for meta...

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Problems solved by technology

Otherwise, the vacuum pump will heat up rapidly, and in severe cases, it will cause the vacuum pump to burn out and reduce the service life of the vacuum pump.

[0003] In the solar cell module production workshop, many devices need to use vacuum, so a vacuum pump room must be equipped to provide vacuum services for the entire battery assembly workshop. The vacuum pump room is composed of several vacuum pumps. In order to ensure that the vacuum pumps can work normally, each vacuum pump must be equipped with Independent water cooling system, that is, each vacuum pump must be equipped with a cooling water inlet pipe and a hot water outlet pipe, so the vacuum pump machine room consumes a large amount of cooling water, not only high operating costs, but also a serious waste of water resources

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