CN106178708A - 一种新型大型空压站流程 - Google Patents

一种新型大型空压站流程 Download PDF

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Publication number
CN106178708A
CN106178708A CN201610549219.6A CN201610549219A CN106178708A CN 106178708 A CN106178708 A CN 106178708A CN 201610549219 A CN201610549219 A CN 201610549219A CN 106178708 A CN106178708 A CN 106178708A
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Prior art keywords
air
flow process
compression station
air compression
cooling
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CN201610549219.6A
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English (en)
Inventor
侯新刚
张飞明
蒋波
蒋一波
郭磊
彭荣梅
俞活龙
袁拥强
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Zhejiang Zhihai Chemical Equipment Engineering Co Ltd
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Zhejiang Zhihai Chemical Equipment Engineering Co Ltd
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Priority to CN201610549219.6A priority Critical patent/CN106178708A/zh
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B01D53/0438—Cooling or heating systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
    • F28C2001/006—Systems comprising cooling towers, e.g. for recooling a cooling medium
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Gases (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

一种新型大型空压站流程，本流程为空压机压缩空气至所需压力后送入空冷塔冷却、初步净化，而后送入分子筛系统除去水、二氧化碳等大分子组分，进入除尘设备净化后作为干燥空气产品送出。同现在普遍流行的空压站流程相比，本流程净化程度高，操作稳定,能耗显著降低，大量降低大型空压站的设备数量和占地面积和投资成本。在大型空压站系统中优势明显。

Description

一种新型大型空压站流程
技术领域
本发明涉及一种新型空压站的流程，是一种能耗低，占地省的新流程，它特别适用于为下游提供干净空气的空压站。
背景技术
压缩空气做为工业生产上最环保的动力源，广泛用于医药，食品，机械，电子，塑胶，纺织，电力，建材等各行各业，作为喷涂，搅拌，输送等等，气压与电压，油压相比，有他得天独厚的优势，它取之不尽，用之不竭。基本上，每一个工厂都会配备一个空压站。随着科技进步而飞速发展,各行各业都向大型化装备发展,大钢铁、大化肥、大石化、大化纤、大乙烯、大芳烃、大炼油、大发电工、大电子、大注氮采油、大煤气
化、大煤化工等等,它们都需要大型、超大型的空压站为之服务。
现在主流的空压站流程中，空气经过压缩机压缩，一般先用冷干机给空气降温并除去部分水分，而后用净化系统进一步除去空气中的水分。或者空气直接进入净化系统净化。净化系统一般采用双塔结构，一塔在高压、常温下吸附空气中的水分，另一塔在低压、高温下用部份干燥空气使吸附塔中的吸附剂再生，经过一定时间，两塔切换，这样就保证了干燥压缩空气的连续供应。再生用的高温干燥空气由干燥后的产品中抽出部分经过加热气加温后得到。
大型空压站能耗高,空分设备的原料是空气,其主要消耗的是能源,能源消耗占生产成本的绝大部分。
随着市场经济的不断完善,空压站能耗的增效已越来越被重视。降低生产成本的主要措施就是降低能耗,节能降耗是企业安全环保、提高效益、增强活力的重要方面。
现在用一种低能耗的新型空压站装置及流程,改进了现在大量使用的带冷干机的空压站装置，其节能、增效,潜力非常大。而且符合现在节能、减排、环保的政策。
发明内容
本发明的目的在于提供一种低能耗的空压站流程,它能够克服已有技术的不足,能在相同产品参数下降低空压站的综合单位能耗,降低生产成本,且节能、减排、环保效果好,从而,可有效地提高生产效率及经济效益。
本装置为空压机压缩，空冷塔和分子筛净化空气，粉尘过滤器过滤，空气缓冲罐稳压，再生采用低压氮气的工艺流程。
原料空气自空压机吸入口吸入，经自洁式空气过滤器除去灰尘及其它机械杂质。过滤后的空气进入空压机，经压缩机压缩后进入空气冷却塔冷却清洗。
空冷塔由填料填充，分上下两段，下段用工厂循环水系统提供的常温水清洗及冷却空气，上段由被冷冻机降温后的循环水冷却空气。回水送入工厂循环水回水管网。经空冷塔冷却后的空气进入切换使用的分子筛纯化器，空气中的二氧化碳和水分被吸附。分子筛纯化器为两只切换使用，其中一只工作时，另一只再生。
从工厂低压氮气管网抽取一股低压氮气，通过加热器加温至180C后供分子筛再生时使用。
净化后的空气送入粉尘过滤器过滤后进入缓冲罐，而后作为产品送出。
本流程的优点在于：1. 用空冷塔替代冷干机，极大地节约了能耗。经测算，达到同样的出口温度，空冷塔系统比冷干机系统节能25%以上。2.空冷塔多为静设备，运行安全稳定，占地小。而冷干机中动设备含量大，运行风险高。3. 再生采用常压氮气，节省了空压站再生用空气量，整个设备能耗节省7%以上，且设备运行更稳定，空气产品流量波动小。总之，大型空压站采用本流程，占地小，能耗低，有效的减少了投资成本，节约了能耗。它能有效地提高生产效率,降低生产成本和投资成本,而且,还能提高经济效益,有利于环境保护。

Claims (4)

1.一种新的空压站流程，主要特征是空气经过压缩后送入空冷塔冷却，空冷塔由填料填充，分上下两段，下段用工厂循环水系统提供的常温水清洗及冷却空气，上段由被冷冻机降温后的循环水冷却空气。
2.回水送回工厂循环水回水管网。
3.根据权利要求1所述的空压站流程，其特征在于空气被空冷塔冷却后送入净化系统，由13X或者氧化铝或者两者组合来净化空气。
4.根据权利要求2所述的空压站流程，其特征在于使用经过加温后的常压氮气再生13X或氧化铝。
CN201610549219.6A 2016-07-13 2016-07-13 一种新型大型空压站流程 Pending CN106178708A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109297260A (zh) * 2018-10-17 2019-02-01 浙江海天气体有限公司 一种全制氮空分废气回收装置
CN114483546A (zh) * 2022-01-24 2022-05-13 山东钢铁集团永锋临港有限公司 一种提高空压站的压缩空气品质的方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203375800U (zh) * 2013-06-24 2014-01-01 湖南宜化化工有限责任公司 合成氨工艺深冷空分制氧系统
CN104474853A (zh) * 2014-12-16 2015-04-01 新余钢铁集团有限公司 压缩空气集中喷淋冷却干燥系统

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203375800U (zh) * 2013-06-24 2014-01-01 湖南宜化化工有限责任公司 合成氨工艺深冷空分制氧系统
CN104474853A (zh) * 2014-12-16 2015-04-01 新余钢铁集团有限公司 压缩空气集中喷淋冷却干燥系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109297260A (zh) * 2018-10-17 2019-02-01 浙江海天气体有限公司 一种全制氮空分废气回收装置
CN114483546A (zh) * 2022-01-24 2022-05-13 山东钢铁集团永锋临港有限公司 一种提高空压站的压缩空气品质的方法

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