Multistage flash system with intermediate heat accumulation

A flash evaporation system and flash evaporation technology, which are applied in the steam generation method using heat carrier, indirect heat exchanger, regenerative heat exchanger, etc. The problem of small flash evaporation can achieve the effect of reducing initial investment and operating costs, uniform heat storage, and avoiding low-temperature corrosion.

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

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Problems solved by technology

[0004] However, in the steam flash combined power generation system, there are still problems of small steam flash volume and low quality, which makes the improvement of the efficiency of the waste heat power generation system not significant

Method used

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  • Multistage flash system with intermediate heat accumulation
  • Multistage flash system with intermediate heat accumulation
  • Multistage flash system with intermediate heat accumulation

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Embodiment Construction

[0035] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] Such as figure 1 As shown, a regenerative heat exchanger for utilizing waste heat in a cement production process, the heat exchanger includes a heat storage material, a low-temperature working fluid tube bundle 9, 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 fluid outlet 8 and the housing 2, the heat storage material is arranged in the housing, the low-temperature working fluid tube bundle 9 is arranged in the housing, the heat storage material is a solid heat storage material; the heat storage material A plurality of first holes 3 and a plurality of second holes penetrating through the heat storage material are provided, the first holes 3 and the second holes are arranged crosswise and are not connected to each other, the cryogenic wor...

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Abstract

The invention provides a heat accumulation type heat exchanger for utilizing waste heat in the cement production process. The heat exchanger comprises heat accumulation material, first holes and second holes are formed in the heat accumulation material and are of multi-row structures, a row of second holes are arranged between every two rows of first holes, a row of first holes are arranged between every two rows of second holes, the first holes and the second holes are arranged to form an angle of 90 degrees, the distance between the centers of circles of every two adjacent holes in the same row of first holes is L2, and L2 and the diameter D1 of the first holes meet the relation that 1.5<L2 / D1<2.7. According to the solid material heat accumulation type heat exchanger, waste heat in the cement production process is fully utilized so that the heat exchange efficiency of the heat exchanger can be maximized, and thus energy is saved, and the purposes of environmental protection and energy conservation can be achieved.

Description

Technical field [0001] The invention involves a heat exchanger for the use of the waste heat of the efficient cement production process, which belongs to the F28D heat exchanger. Background technique [0002] The cement industry is a highly energy -consuming, high -pollution industry.The new method is a advanced cement production process.Cement's clinker is fired through dry method to reduce dehydration, thereby greatly reducing energy consumption. Therefore, advanced new dry-type cement production is 50%-60%of energy saving than wet production, but there is still a broad energy-saving space.In order to further improve the energy utilization efficiency of cement enterprises and reduce the cost of cement enterprises, the Ministry of Industry and Information Technology released the "Implementation Plan for the Promotional Promotion of Pure Low -temperature Heritage Power Generation Technology of New drying cement kilns" to promote the application of cement production line residual ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D17/02F27D17/00F22B1/10
CPCY02P10/25
Inventor 程林杜文静
Owner 山东中和热工科技有限公司
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