IC reactor heating system on the basis of gas power generator set and compression heat pump

Abstract

The invention discloses an IC reactor heating system on the basis of a gas power generator set and a compression heat pump. The IC reactor heating system includes: an IC reactor, a gas storage tank, agas power generator set, a compression heat pump and a heat exchanger. The IC reactor firstly treats waste water to generate biogas, then the biogas is purified to satisfy the demand of the gas powergenerator set; the generated power is used for driving the compression heat pump to recycle the heat from outputted waste water from the IC reactor, and meanwhile, waste heat from a tank jacket in the gas power generator set and discharged waste heat are recovered to effectively utilize the energy, thus producing high-temperature hot water for heating inputted waste water in the IC reactor. The system has two operation modes, one is to heat the inputted waste water by means of the outputted waste water from the IC reactor and the recovered waste heat of the gas power generator set, and the other is to combine the gas power generator set and the compression heat pump, so that the temperature of the IC reactor can be maintained in an optimum temperature range in all year round. The system can effectively utilize energy and reduce investment on energy and economy.

Description

technical field [0001] The invention relates to the technical field of equipment for producing biogas through anaerobic reaction fermentation of sewage, in particular to an IC reactor heating system based on a gas generator set and a compression heat pump. Background technique [0002] The IC reactor is a high-efficiency anaerobic reactor successfully developed by Paques in the Netherlands in the 1980s. The characteristic of the IC reactor is that the biogas separation is divided into two stages in a high reactor, the lower reaction zone is under high load, the upper reaction zone is under low load, and the biogas generated in the lower reaction zone is used as power to realize the mixing of the lower reaction zone The internal circulation of the liquid enhances the pretreatment of the wastewater; at the same time, the upper reaction zone continues to post-treat the wastewater so that the effluent can achieve the expected anaerobic treatment ([1] Experimental Research on Pig...

AI Technical Summary

Problems solved by technology

Since the optimal growth temperature of most anaerobic bacteria (mainly methanogens and hydrolytic bacteria) is 30-35°C, suitable ambient temperature and small temperature fluctuations are important conditions for the stable operation of IC reactors ([2] UASB_IC Research on the operation characteristics of reactors for treating organic wastewater_Liu Guangliang), in view of this factor, in many cities in my country, the efficiency of IC reactors will be greatly reduced when using IC reactors in winter, and the treated sewage is often difficult to meet the requirements

[0003] In order to ensure that the temperature in the reactor is maintained within a relatively constant range, the traditional method mostly uses a biogas boiler ([3] Design of solar energy_biogas boiler and biogas digester combined system - Zhao Jinhui), but the utilization efficiency of biogas boiler Low, part of the heat will be discharged with the flue gas

More importantly, the waste water at the outlet of the IC reactor contains a lot of waste heat, but it cannot be effectively utilized

Images