CN218410821U - 一种带有不凝气分离和排放功能的板壳式换热器 - Google Patents

一种带有不凝气分离和排放功能的板壳式换热器 Download PDF

Info

Publication number
CN218410821U
CN218410821U CN202222424776.9U CN202222424776U CN218410821U CN 218410821 U CN218410821 U CN 218410821U CN 202222424776 U CN202222424776 U CN 202222424776U CN 218410821 U CN218410821 U CN 218410821U
Authority
CN
China
Prior art keywords
plate
heat exchanger
shell
condensable gas
board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202222424776.9U
Other languages
English (en)
Inventor
陈绍云
张永春
孙鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongfeng Xinhe Dalian Technology Co ltd
Dalian University of Technology
Original Assignee
Zhongfeng Xinhe Dalian Technology Co ltd
Dalian University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongfeng Xinhe Dalian Technology Co ltd, Dalian University of Technology filed Critical Zhongfeng Xinhe Dalian Technology Co ltd
Priority to CN202222424776.9U priority Critical patent/CN218410821U/zh
Application granted granted Critical
Publication of CN218410821U publication Critical patent/CN218410821U/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/0266—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
    • F25J5/002—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger
    • F25J5/005—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger in a reboiler-condenser, e.g. within a column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/02—Processes or apparatus using separation by rectification in a single pressure main column system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/70—Refluxing the column with a condensed part of the feed stream, i.e. fractionator top is stripped or self-rectified
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
    • F25J2205/04—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum in the feed line, i.e. upstream of the fractionation step
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/04—Recovery of liquid products
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2220/00—Processes or apparatus involving steps for the removal of impurities
    • F25J2220/80—Separating impurities from carbon dioxide, e.g. H2O or water-soluble contaminants
    • F25J2220/82—Separating low boiling, i.e. more volatile components, e.g. He, H2, CO, Air gases, CH4
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/30—Compression of the feed stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/34—Details about subcooling of liquids

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

本实用新型公开了一种带有不凝气分离和排放功能的板壳式换热器，包括壳体，所述壳体内设置椭圆形或圆形的板束，所述板侧通道一端连接板侧入口接管，另一端连接不凝气体排放接管，内部设置板程挡板，所述板程挡板将板程分为两个独立的流程。换热器工作原理为：制冷剂液体在壳侧满液蒸发吸热，混合组分热源介质在板程第一流程释放冷凝热凝结液化，从排液接管排出；不凝气体通过板程第二流程分离，并通过不凝气排放接管排出，本实用新型在换热器内实现了液化以及不凝气的分离和排放，减轻了塔顶冷凝器的工作负荷，减少占地面积和成本。

Description

一种带有不凝气分离和排放功能的板壳式换热器
技术领域
本发明属于一种混合组分气体液化技术领域，涉及一种带有不凝气分离和排放功能的板壳式换热器。
背景技术
用于混合组分气体液化的板壳式液化器，现有技术流程中不凝气排放，都是在液化器出口设置气液分离器，使气液一并流入气液分离器，利用气液分离器进行不凝气分离和排放；或者不设置不凝气排放，不凝气直接和液体一并进入到后面精馏塔单元，通过精馏塔的塔顶冷凝器进行分离排放。
现有技术的不足之处在于：
1、现有技术液化器在运行过程中，如果不进行不凝气排放，会造成不凝气在液化器中聚集；尤其当不凝气为轻组分时，聚集在液化器上方，导致前方原料气压缩机排气压力升高，能耗增加；当液化器中不凝气分压增加，在相同的冷却温度下，液化比例下降，产品产率降低；
2、现有技术若所有不凝气全部进入到精馏塔中，在精馏塔中分离，在排放前经过塔顶冷凝器，增加了塔顶冷凝器的处理量，也增加了塔顶冷凝器的工作负荷，造成设备和能源的浪费；
3、现有技术在液化器后方单独设置不凝气气液分离器时，同样无法及时排放液化器中的不凝气，只能对随同液体一并进入到气液分离器中的不凝气进行分离，排放；这样设计还增加了一个单独的气液分离设备，造成成本增加，占地增多。
发明内容
本发明为解决上述问题而提出，其目的在于提供一种集液化和不凝气分离，排放功能于一体的板壳式换热器。
为了实现上述目的，本实用新型的技术方案如下：
一种带有不凝气分离和排放功能的板壳式换热器，包括壳体，所述壳体内设置椭圆形或圆形的板束，所述板侧通道一端连接板侧入口接管，另一端连接不凝气体排放接管，内部设置板程挡板，所述板程挡板将板程分为两个独立的流程。
两个独立的流程中第一流程用于混合组分气体中低露点组分的液化(目标液化组分)，第二流程用做未液化且未溶解在液体中的不凝气体的分离和排放通道。
换热器工作原理为：制冷剂液体在壳侧满液蒸发吸热，混合组分热源介质在板程第一流程释放冷凝热凝结液化，从排液接管排出；不凝气体通过板程第二流程分离，并通过不凝气排放接管排出。
所述壳体内圆与板束外圆之间设有导流块，所述导流块用以防止壳侧流体沿壳体内圆与板束外圆形成的环形空间短路流动。
所述椭圆形或圆形板束设置在壳体内部偏心向下位置。
所述换热器底部设有支座。
所述换热器为满液式换热器。
所述板束为椭圆形或圆形全焊接结构。
本实用新型所述换热器也可以设置壳侧压力表接口、安全阀接口，回油接口，排污接口等，不赘述。
本实用新型的有益效果是板程挡板将板程分为两个独立的流程，第一流程用于混合组分气体中低露点组分的液化(目标液化组分)，第二流程用做未液化且未溶解在液体中的不凝气体的分离和排放通道，在换热器内实现了液化以及不凝气的分离和排放，减轻了塔顶冷凝器的工作负荷，减少占地面积和成本。
附图说明
图1为带有不凝气排放功能的板壳换热器的结构图；
图2为带有不凝气排放功能的板壳换热器的左视图；
图3为本实用新型换热器应用到CO2低温分馏系统工艺流程示意图；
主要部件：
1-壳体；2-板束；3-导流块；4-支腿；2A-板侧入口接管；2B-不凝气排放接管；2C-板侧排液接管I；2D-板侧排液接管II；2E-板程挡板；1E-壳侧入口接管；1F-壳侧出口接管；5-原料气压缩机；6-压缩机后冷却器；7-预冷器；8-换热器；9-精馏塔；10-不凝气排放管道；11-混合器；12-过冷器。
具体实施方式
以下，参照附图详细说明本发明的实施例。
实施例1
如图1和2所示，一种带有不凝气分离和排放功能的板壳式换热器，包括壳体1，所述壳体1内设置椭圆形或圆形的板束2，所述壳体1内圆与板束2外圆之间设有导流块3，所述板侧通道一端连接板侧入口接管2A，另一端连接不凝气体排放接管2B，内部设置板程挡板2E，所述板程挡板2E将板程分为两个独立的流程，第一流程用于混合组分气体中低露点组分的液化(目标液化组分)，第二流程用做未液化且未溶解在液体中的不凝气体的分离和排放通道；所述板束2设置在壳体1内部偏心向下位置；所述换热器为满液式换热器，底部设有支座4。
图3表示所述换热器应用到CO2低温分馏系统工艺流程中。原料气(含有其他组分，比如氧气，氮气，烃类等)被原料气压缩机5压缩后，进入压缩机后冷却器6，进行降温，降温的同时也便于除去原料气中的水分，接下来原料气进入预冷器7中，回收排放气的冷量，进行降温，但不发生相变。接着再到本实用新型所述的换热器8中，在板程的第一流程中(图1所示2A-2E向下的板束通道)进行凝结放热液化，饱和CO2液体，饱和CO2气体和不凝气进入到板侧出口的通道(图1所示2C-2D通道)，然后CO2液体从板侧排液接管I 2C和板侧排液接管II 2D排入到精馏塔中；不凝气和部分CO2气体会从2C-2D通道上升到图1所示2E-2B通道，从不凝气排放接口2B排出，经不凝气排放管道10与精馏塔9的塔顶排放气在混合器11混合后进入预冷器7，给原料气预冷。不凝气的排放通过电动阀控制，电动阀的动作信号可以是液化器的压力值，或者某种气体组分含量检测参数设定值等。
上述实施方式只是本实用新型所述换热器的一种应用。但不限于此，我们公开的是一种带有不凝气分离和排放功能的板壳式换热器，它可以应用在任何混合组分气体在板程部分液化的场合。壳侧的制冷剂可以是CO2，可以是氟利昂，可以是丙烷等。

Claims (6)

1.一种带有不凝气分离和排放功能的板壳式换热器，其特征在于：包括壳体（1），所
述壳体（1）内设置椭圆形或圆形的板束（2），板侧通道一端连接板侧入口接管（2A），
另一端连接不凝气体排放接管（2B），内部设置板程挡板（2E），所述板程挡板（2E）将
板程分为两个独立的流程。
2.如权利要求 1 所述的一种带有不凝气分离和排放功能的板壳式换热器，其特征在于：
所述壳体（1）内圆与板束（2）外圆之间设有导流块（3）。
3.如权利要求 1 所述的一种带有不凝气分离和排放功能的板壳式换热器，其特征在于：
所述椭圆形或圆形板束（2）设置在壳体（1）内部偏心向下位置。
4.如权利要求 1 所述的一种带有不凝气分离和排放功能的板壳式换热器，其特征在于：
所述换热器底部设有支座（4）。
5.如权利要求 1 所述的一种带有不凝气分离和排放功能的板壳式换热器，其特征在于：
所述换热器为满液式换热器。
6.如权利要求 1 所述的一种带有不凝气分离和排放功能的板壳式换热器，其特征在于：
所述板束（2）为椭圆形或圆形全焊接结构。
CN202222424776.9U 2022-09-14 2022-09-14 一种带有不凝气分离和排放功能的板壳式换热器 Active CN218410821U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222424776.9U CN218410821U (zh) 2022-09-14 2022-09-14 一种带有不凝气分离和排放功能的板壳式换热器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222424776.9U CN218410821U (zh) 2022-09-14 2022-09-14 一种带有不凝气分离和排放功能的板壳式换热器

Publications (1)

Publication Number Publication Date
CN218410821U true CN218410821U (zh) 2023-01-31

Family

ID=85031500

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222424776.9U Active CN218410821U (zh) 2022-09-14 2022-09-14 一种带有不凝气分离和排放功能的板壳式换热器

Country Status (1)

Country Link
CN (1) CN218410821U (zh)

Similar Documents

Publication Publication Date Title
US5899091A (en) Refrigeration system with integrated economizer/oil cooler
GB2446062A (en) Carbon dioxide refrigeration system with compressors in two-stage arrangement
CA2189879A1 (en) Non-Concentric Oil Separator
US6694768B2 (en) Non-frost deep-freezing gas dehydrator
CN101275798A (zh) 精馏型混合工质自复叠气体液化系统
KR860001331A (ko) 고순도 질소가스 제조장치
CN111565546A (zh) 一种用于数据中心的无油高效制冷系统及其控制方法
CN218410821U (zh) 一种带有不凝气分离和排放功能的板壳式换热器
US4144717A (en) Dual flash economizer refrigeration system
CN217383354U (zh) 一种分凝装置及自复叠制冷系统
CN111876192A (zh) 一种吸收自复叠冷凝组合式油气回收系统及回收方法
CN208059355U (zh) 压缩式制冷机用冷凝器
CN109323533A (zh) 一种使用中压精馏塔降低空分能耗方法及装置
CN209605479U (zh) 一种使用中压精馏塔降低空分能耗装置
CN211575629U (zh) 一种制冷剂不冷凝气体排除装置和采用低压制冷剂的冷水机组
CN211823238U (zh) 环境试验箱自复叠制冷系统
CN210035929U (zh) 室外型带补气增焓的低温涡旋并联风冷冷凝压缩机组
CN111397307B (zh) 一氧化碳分离提纯装置与一氧化碳分离提纯工艺
CN213147125U (zh) 一种深度空气分离系统
CN215719514U (zh) 一种螺杆压缩机组用油气分离器
KR200214006Y1 (ko) 저 압축부하형 냉방장치
CN219415431U (zh) 一种用于工业co2液化装置的冷源系统
US5586440A (en) Pneumatic refrigeration system and method
CN103032981A (zh) 冷媒压缩机组
KR970004338B1 (ko) 2단팽창 냉매사이클

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant