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Multilevel heat accumulation system

A heat storage system and heat storage technology, which is applied in the field of F28d heat exchangers, can solve the problems of poor heat storage capacity, unstable waste heat resources, and insignificant benefits of the heat storage system, achieve uniform heat storage, and reduce initial investment. and running costs, easy-to-manufacture effects

Inactive Publication Date: 2015-03-04
山东中和热工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the problem is that it is difficult for a single heat storage material to adapt to unstable waste heat resources
When the temperature of the flue gas fluctuates greatly and shows intermittent, the heat storage capacity of the heat storage system is poor, and the benefit is not obvious

Method used

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  • Multilevel heat accumulation system
  • Multilevel heat accumulation system
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Embodiment Construction

[0037] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] like figure 1 As shown, a regenerative heat exchanger for waste heat utilization in the cement production process, the heat exchanger includes a first tube bundle 3 and a second tube bundle 4, a high-temperature flue gas inlet 5, a high-temperature flue gas outlet 1, and a low-temperature working fluid inlet 10. The low-temperature working medium outlet 8 and the shell 2, the first tube bundle 3 and the second tube bundle 4 are arranged in the shell 2, the first tube bundle 3 is used to circulate the flue gas produced in the cement production process, the second tube bundle 3 The tube bundle 4 is used to circulate low-temperature medium, and the first tube bundle 3 and the second tube bundle 9 are intersected; the flue gas enters from the high-temperature flue gas inlet 5, passes through the first tube bundle 3, and then is discharg...

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Abstract

The invention provides a heat accumulation type heat exchanger using waste heat in the cement production process. The heat exchanger comprises a first tube bundle and a second tube bundle. Heat accumulation materials are arranged in the space outside the first tube bundle and the second tube bundle. The tube diameter of the second tube bundle is gradually reduced in the smoke flowing direction. According to the heat accumulation type heat exchanger, waste heat in cement production is fully utilized, the heat exchange efficiency of the heat accumulation type heat exchanger can be maximized, so that energy is saved, and the purposes of protecting the environment and saving energy are achieved.

Description

technical field [0001] The invention relates to a regenerative heat exchanger and a system thereof for utilizing waste heat in a high-efficiency cement production process, belonging to the field of F28d heat exchangers. Background technique [0002] The cement industry is a high energy consumption and high pollution industry. The total energy consumption of my country's cement industry in 2012 was 270 million tons of standard coal, accounting for 8% of my country's total raw coal output in 2012. The new dry process is an advanced cement production process. The clinker of cement is fired by the dry method, which reduces the dehydration process, thereby greatly reducing energy consumption. Therefore, the advanced new dry method of cement production can save energy by 50%-60% compared with the wet method, but there is still a wide space for energy saving. In 2010, in order to further improve the energy utilization efficiency of cement enterprises and reduce the cost of cement...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D20/00F28F27/02
CPCY02E60/142Y02E60/14
Inventor 程林杜文静
Owner 山东中和热工科技有限公司
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