Waste liquid inactivation device using flash steam

Abstract

The invention relates to a waste liquid inactivation device using flash steam, which comprises two independent waste liquid inactivation tanks, and the top of each waste liquid inactivation tank is respectively provided with a liquid inlet port, a flash steam inlet port and a water inlet port , industrial steam inlet port, exhaust port, safety valve, each liquid inlet port, flash steam inlet port, water inlet port, industrial steam inlet port, and exhaust port are respectively equipped with control valves, and each waste liquid is inactivated The bottom of the tank is respectively provided with a liquid discharge interface, and each liquid discharge interface is respectively provided with a control valve. It deactivates the waste liquid by passing the flash steam into the waste liquid inactivation tank, which greatly reduces the amount of industrial steam in the waste liquid inactivation tank, and effectively realizes the recovery and utilization of heat energy. One waste liquid inactivation tank enables two waste liquid inactivation tanks to alternately carry out waste liquid inactivation, realizes the continuous inactivation of production waste liquid, ensures the recycling of heat energy, and reduces production costs.

Description

technical field [0001] The invention relates to a flash steam recycling device, in particular to a waste liquid deactivation device utilizing flash steam. Background technique [0002] At present, in biopharmaceutical projects, because microorganisms are the most important products in process production, such as bacteria, fungi, viruses, etc., there are often a large number of active microorganisms in the production waste liquid, and we must conduct a unified waste collection for waste liquid collection. After liquid inactivation treatment, it can be discharged to the outdoor wastewater pipe network to the sewage treatment station for subsequent treatment. In the current biological waste liquid inactivation treatment method, high-temperature sterilization is one of the most important methods, such as sterilization at 121°C for 15 minutes, and the heat source for sterilization mainly comes from industrial steam. Convenience, reliability, high efficiency and low cost. In the...

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Problems solved by technology

However, the disadvantage of using this method to recycle flash steam is that since the process of heating hot water through the heat exchanger is a dynamic process (cold water enters from one end of the heat exchanger, hot water exits from the other end of the pipe, water It flows in the heat exchanger and is continuously heated), which requires that the heated medium is also continuous and uninterrupted, and the flow rate meets a fixed demand (such as industrial steam prepared by a boiler), but the characteristics of flash steam are intermittent, not It is generated regularly, and the amount generated at the same time is not fixed, sometimes large and sometimes small, so this method must be equipped with steam as a heating auxiliary medium, and the heating requirements of hot water are met through self-control technology, which not only increases the recovery cost, but also controls The system is relatively complex, with poor stability and reliability, and it is extremely difficult for continuous heating conditions

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