Organic solvent gas vacuum recovery system and method thereof
A technology of organic solvents and recovery systems, applied in separation methods, chemical instruments and methods, steam condensation, etc., can solve the problems of large demand for chilled water, waste of energy and resources, and environmental protection problems, and achieve resource conservation and energy conservation , the effect of preventing air backflow
Pending Publication Date: 2018-11-30
迪茗(上海)智能科技有限公司
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Problems solved by technology
The former will produce a large amount of organic solvent organic solvent gas, whether it is absorbed (converting waste gas into waste liquid) or incinerated (RTO incineration), it will bring huge pressure to the back-end environmental protection treatment, and waste energy and resources at the same time
Although the latter has a condensing device, it has a huge demand for chilled water, and also produces a certain amount of organic solvent organic solvent gas, which still has environmental protection problems. Absorption (converting waste gas into waste liquid) or incineration ( RTO incineration)
There is also a safety problem in the open system. There is a possibility of backflow of air, which will pose a great safety risk
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[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] In the description of the present invention, it should be noted that unless otherwise specified and limited, "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be Direct connection, or indirect connection through an intermediary, or internal communication between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific...
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An organic solvent gas vacuum recovery system comprises a knockout drum, a vacuum pump, a condenser, a receiving tank and a liquid transfer pump. a first valve is arranged between the knockout drum and the vacuum pump; a second valve is arranged between the vacuum pump and the condenser; a first branch pipeline is disposed between the vacuum pump and the first valve; the first branch pipeline is communicated with the condenser; a second branch pipeline is disposed between the vacuum pump and the second valve; the second branch pipeline is communicated with an external pipeline; and the first branch pipeline and the second branch pipeline are respectively equipped with a third valve and a fourth valve. In addition, the invention also provides an organic solvent gas vacuum recovery method. According to the invention, a closed system is adopted, and micro-compression is carried out in the closed system, thus realizing normal temperature recovery of the organic solvent gas.
Description
technical field [0001] The invention belongs to the technical field of refrigeration engineering, in particular to a vacuum recovery system and method for organic solvent gas. Background technique [0002] The current organic solvent gas recovery devices are all open-type organic solvent gas recovery devices. There is no entrainment separation device in front of the vacuum pump. Some devices have filters installed in front of them, but the filters are easily blocked, affecting production. Some vacuum pumps do not have a condensing device behind them, and some vacuum pumps have a condensing device behind them, but low-temperature chilled water is required for condensation. The former will produce a large amount of organic solvent organic solvent gas, whether it is absorbed (converting waste gas into waste liquid) or incinerated (RTO incineration), it will bring huge pressure to the back-end environmental protection treatment, and waste energy and resources at the same time. ...
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IPC IPC(8): B01D5/00B01D45/12B01D45/04
CPCB01D5/0072B01D45/04B01D45/12
Inventor 徐迪影顾利民
Owner 迪茗(上海)智能科技有限公司