合格作品 字數(shù)25863

摘 要
本文簡述了煤化工的起源以及其在發(fā)展中的起起落落，通過分析當今世界一次能源消費結構，全球化石能源供應前景，中國的化石能源分布。闡明了煤化工工業(yè)在中國范圍內以致世界范圍內發(fā)展的必然性以及其在能源化工領域所占有的重要地位。概述了國內外煤化工工業(yè)的發(fā)展現(xiàn)狀及未來發(fā)展趨勢；概述了煤氣初步冷卻的目的意義；介紹了鼓風冷凝工段的工藝流程，現(xiàn)今焦化廠常用的初冷工藝及工藝流程中的常用設備，并對各種工藝和設備進行了分析優(yōu)劣，根據(jù)自己所設計的題目及所要達到的預期目標著重對鼓冷工段進行了物料衡算和熱量衡算，對所需主要設備進行了選型及初步確定。進行了經濟概估，初步確定該工段的盈虧情況，初步制定了主要非工藝設計條件，繪制了初步冷凝冷卻器設備圖、帶控制點的工藝流程簡圖并根據(jù)預訂風向初步確定了鼓風冷凝工段設備的平面布置圖。
關鍵詞 煤氣冷卻 設備 工藝 經濟估算 初步設計
Abstract
This paper describes the origins of the coal chemical industry and its development in the ups and downs, through the analysis of the current world a energy consumption structure, global fossil energy supply, China's prospects fossil energy distribution. The coal chemical industry in China illustrate the range, so that the world scope of necessity of the development and the energy field of chemical industry, the important role of possession. Summarizes the current situation of the development of the coal chemical industry at home and abroad and the future development; Summarizes the purpose of cooling gas preliminary significance; Introduced the drum wind cooling section in the process, now commonly used plant early technology and process flow of the cold commonly used equipment, and kinds of the technology and equipment are analyzed advantages and disadvantages, according to his own design as the subject and the expected goal mainly on the drum the material balance in the cold section is and heat balance calculations of main equipment needed, the type selection and preliminary sure. The economic value is determined primarily this section, and loss situation, the preliminary formulated the main the process design conditions, painted preliminary condensing cooler equipment with the control points diagram, process flow diagram and reservation has been preliminarily determined according to the direction of the wind cooling section of the equipment drum wind floor plan.
Keywords Gas cooling Equipment Process Economic assessment Preliminary design
目 錄
摘要 I
Abstract II
第1章 緒論 1
1.1 簡述煤化工發(fā)展史 1
1.2 煤氣初步冷卻的目的和意義 2
第2章 鼓冷工段流程詳述及選擇 4
2.1 煤氣的輸送 5
2.2 煤氣的間接冷卻工藝 6
2.3 煤氣的直接冷卻工藝 8
2.4 煤氣的間冷-直冷混合冷卻 9
2.5 焦油和氨水的分離 10
第3章 主要設備的選型 12
3.1 鼓風機結構、特點及選型 12
3.1.1 離心式鼓風機 12
3.1.2 羅茨式鼓風機 12
3.2 冷凝冷卻器的選型 13
3.2.1 立管式間接初冷器 13
3.2.2 橫管式間接初冷器 14
3.3 機械化氨水澄清槽結構、特點 15
3.4 電捕焦油器 15
3.4.1 電捕焦油器的構造 15
3.4.2 電捕焦油器的工作原理 16
第4章 設備計算及驗證 19
4.1 熱量和物料驗證 19
4.1.1 集氣管物料和熱量驗證 20
4.1.2 立笯@趵淦魅攘亢臀锪涎櫓?27
4.2設備計算 31
4.2.1 立管式初冷器的工藝計算 31
4.2.2 集氣管的計算 36
4.2.3 鼓風機的工藝計算，選型 37
4.2.4 機械化氨水澄清槽的計算，選型 38
4.2.5 中間槽的計算 39
4.2.6 電捕焦油器的工藝計算，選型 40
4.2.7 焦爐選型及計算 42
第5章 設備一覽表 44
第6章 非工藝設計條件 47
6.1 土建設計條件 47
6.2 供電照明 50
6.3 儀表控制條件 51
6.4 采暖通風 53
6.5 給排水設計條件 54
6.6 分析化驗設計條件 54
第7章 綜合概算和經濟分析 55
7.1 投資費用 55
7.2 成本核算 57
7.2.1 生產成本費用估算 57
7.3 經濟效益評估 59
結束語 60
謝辭 61
參考文獻 62
Contents
Abstract I
Abstract II
Contents III
Contents V
The first chapter summarize 1
1.1 The coal chemical industry development history 1
1.2 Gas preliminary the cooling of the purpose and meaning 2
The second chapter Drum wind cooling process choice 4
2.1The indirect cooling process gas 5
2.2 Gas directly cooling process 7
2.3 Gas indirect cooling direct cooling mixing process 8
2.4 The tar and ammonia water separation 9
2.5 Coal gas transportation 11
2.6 Electric detarrer 12
The third chapter Drum wind cooling equipment choice 15
3.1Preliminary condensing cooler types of choice 15
3.1.1The stand pipe type indirect preliminary condensing cooler 15
3.1.2Horizontal pipe indirect preliminary condensing cooler 16
3.2Blower structures characteristics and selection 16
3.2.1Centrifugal blower 17
3.2.2 ROM. Watts air blower type 17
3.3 Electric detarrer 18
3.3.1 Electric detarrer principle of work 18
3.3.2 Electric detarrer structure 19
3.4 The structure of the ammonia tank mechanization clarification characteristics 19
The fourth chapter Process calculation. 21
4.1Heat balance calculations and..