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Recovery system for waste heat of fermentation tank and waste heat recovery process

The technology of a waste heat recovery system and a fermentation tank, which is applied in the field of fermentation, can solve the problems of ineffective recovery and utilization of waste heat, waste of energy resources, etc., and achieve the effects of being suitable for large-scale industrial production, saving steam and reducing environmental pollution.

Active Publication Date: 2018-12-07
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the waste heat generated by the emptying of the fermentation tanks of many domestic enterprises, the sterilization of the fermentation medium, and the fermentation process has not been effectively recycled, resulting in a great waste of energy resources.

Method used

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  • Recovery system for waste heat of fermentation tank and waste heat recovery process

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Comparison scheme
Effect test

Embodiment 1

[0017] Such as figure 1 As shown, the fermentation tank waste heat recovery system includes a fermentation tank 7, a No. 1 circulation tank 4, a No. 2 circulation tank 10, a plate heat exchanger 9, a rotameter 8, a cyclone separator 6, a water storage tank 1, and a circulation tank 10. Cold well 3, centrifugal pump 2 and hot water storage tank 11, the No. 1 circulation tank is connected with the cooling pipe 5 of the fermentation tank through the insulation pipe, and is used to recover waste heat when the fermentation tank is preheated and cooled, and the No. 2 circulation tank The tank is connected to the plate heat exchanger through the insulation pipe, and the plate heat exchanger is connected to the rotameter, the cyclone separator and the fermentation tank body in turn through the insulation pipe, which is used for high-temperature steam sterilization and fermentation production in the fermentation tank. The waste heat is recovered in time, the tank bottoms of the No. 1 c...

Embodiment 2

[0019] A waste heat recovery process using the waste heat recovery system of the fermentation tank described in Example 1. When using high-temperature steam to sterilize the fermentation tank, in the preheating stage, the steam enters the cooling pipe in the fermentation tank along a set path, and then passes through the heat preservation pipeline The system directly enters the hot water storage tank to realize preheating of the fermentation tank and waste heat recovery; after the preheating of the fermentation tank is completed, the steam enters the tank body through the insulation pipe according to the set path, and then passes through the cyclone separator and rotameter in sequence, and directly enters the In the No. 2 circulation tank; when the temperature in the No. 1 circulation tank reaches the set value, the centrifugal pump will pump the hot water in the No. 1 circulation tank into the hot water storage tank along the set path, and sterilize it in the fermentation tank ...

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Abstract

The invention provides a recovery system for waste heat of a fermentation tank and a production process thereof. The recovery system comprises the fermentation tank, a first circulating tank, a secondcirculating tank, a plate heat exchanger, a rotor flow meter, a cyclone separator, a reservoir, a circulating cold well, a centrifugal pump and a hot water storage tank. The high-temperature steam sterilization of the fermentation tank, the cooling water circulation and the exhaust gas emission are realized while the steam (tail gas) waste heat in the corresponding process is realized; the hot water in the hot water storage tank can be directly used for compounding; compared with the operation of directly using normal temperature clean water in a sterilizing process, the operation of directlyusing hot water has the advantages that a large amount of steam is saved, a large amount of electric energy is saved, the environmental pollution is reduced, a substantial economic benefit is generated and the requirement of large-scale industrial production can be met.

Description

technical field [0001] The invention relates to the technical field of fermentation, in particular to a fermentation tank waste heat recovery system and a waste heat recovery process. Background technique [0002] The bio-fermentation industry is an industry that the national environmental protection department focuses on. Energy consumption costs account for about 20% of the total production cost, so the task of energy conservation and emission reduction is heavy. At present, many domestic enterprises have not effectively recovered and utilized the waste heat generated by the emptying of the fermentation tanks, the sterilization of the fermentation medium, and the fermentation process, resulting in a great waste of energy resources. Do a good job in energy conservation and emission reduction, eliminate outdated production capacity and technology, reduce production energy consumption, and reduce carbon dioxide emissions have a long way to go. Contents of the invention [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/00C12M1/12C12M1/02
CPCC12M37/00C12M41/24C12M43/00
Inventor 徐庆阳陈宁张震李燕军谢希贤马倩范晓光张成林
Owner TIANJIN UNIV OF SCI & TECH