Front gas and liquid separation vacuum maintaining device

Abstract

The invention relates to a front gas and liquid separating vacuum maintaining device. The device is simple in structure, small in floor size and capable of being arranged on site; a first partition plate and a second partition plate are arranged inside a steam-gas separating device, the internal space of the steam-gas separating device is partitioned into three cabins through the first partition plate and the second partition plate, the cabins are the working water outlet cabin, the heat exchange cabin and the working water inlet cabin from left to right in sequence, and working water enters the working water inlet cabin from a second water inlet in the right side of the steam-gas separating device, and flows through a heat exchange tube to perform heat exchange with non-condensable gas with high temperature inside the heat exchange cabin; working water flows through the heat exchange tube to perform heat exchange inside the heat exchange cabin, due to the fact that the heat exchange tube is arranged horizontally, the heat exchange efficiency with the non-condensable gas is high, the cooling efficiency of the non-condensable gas is high, the working efficiency of a vacuum pump is improved, and the working state and the service life of the vacuum maintaining device are ensured.

Description

technical field [0001] The invention relates to a vacuum maintaining device, in particular to a pre-gas-liquid separation vacuum maintaining device. Background technique [0002] Whether it is large-scale energy power generation industries such as thermal power and nuclear power, or chemical processes such as steel and medicine, condensers are involved, and condensers have become one of the main equipment in the chemical industry. The condenser generally operates in a high vacuum state. Due to the inevitable air leakage of industrial equipment, the condensed steam is mixed with more air during the condensation process. If the leaked air not only affects the condensation heat transfer efficiency, but also the increasing air will Destroying the vacuum degree of the condenser makes the chemical engineering deviate from the design value, and the efficiency / production capacity decreases, which directly affects the economics of the process. In actual industrial production, in ord...

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Problems solved by technology

Furthermore, vacuum pumps generally cannot directly inhale air (non-condensable gas) mixed with water vapor. Higher temperature water vapor will affect the working state and service life of the vacuum pump.

[0003] However, the existing vacuum suction devices generally have problems such as complex structure, low heat transfer efficiency on the cooling water side, large footprint and inconvenient on-site layout.

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