GB/T 10476-2024尿素高壓冷凝器技術(shù)條件

ICS71.120.30

CCSG93

中華人民共和國國家標準

GB/T10476—2024

代替GB/T10476—2004

尿素高壓冷凝器技術(shù)條件

Specificationsforureahighpressurecondenser

2024?09?29發(fā)布2025?04?01實施

國家市場監(jiān)督管理總局

國家標準化管理委員會發(fā)布

GB/T10476—2024

目次

前言··························································································································Ⅲ

1范圍····················································································································1

2規(guī)范性引用文件········································································································1

3術(shù)語和定義···········································································································3

4符號······················································································································3

5設(shè)計······················································································································3

5.1通則··············································································································3

5.2冷凝器的基本結(jié)構(gòu)····························································································3

5.3主要零部件·····································································································5

6材料··················································································································10

6.1通用要求·······································································································10

6.2低合金鋼·······································································································10

6.3尿素級不銹鋼···································································································11

7制造··················································································································13

7.1通用要求·······································································································13

7.2材料復(fù)驗·······································································································13

7.3坡口················································································································13

7.4組裝················································································································14

7.5焊接···············································································································15

7.6熱處理············································································································16

7.7試件與試樣···································································································16

7.8表面處理·······································································································17

7.9無損檢測·······································································································17

8檢驗和試驗·········································································································20

8.1尺寸·············································································································20

8.2形狀公差、位置公差和跳動················································································20

8.3表面粗糙度······································································································20

8.4焊接接頭外觀質(zhì)量···························································································20

8.5表面噴砂除銹處理噴射清理等級的評定·······························································20

8.6無損檢測·······································································································20

8.7化學成分·······································································································20

8.8力學性能·······································································································21

8.9金屬平均晶粒度·····························································································21

Ⅰ

GB/T10476—2024

8.10鍛件中非金屬夾雜物······················································································21

8.11鐵素體含量··································································································21

8.12晶間腐蝕傾向試驗·························································································21

8.13選擇性腐蝕檢查和金相檢查·············································································22

8.14硬度··············································································································22

8.15耐壓試驗·····································································································22

8.16泄漏試驗·····································································································22

9出廠檢驗···········································································································23

10隨行文件、標志、運輸、包裝和貯存···········································································23

10.1隨行文件·····································································································23

10.2標志···········································································································23

10.3運輸、包裝和貯存··························································································24

圖1尿素高壓冷凝器的基本結(jié)構(gòu)··················································································4

圖2氣液分布器結(jié)構(gòu)示意圖························································································6

圖3甲銨液進口用緩沖器結(jié)構(gòu)示意圖············································································7

圖4甲銨液出口用防渦器結(jié)構(gòu)示意圖············································································8

圖5支撐格柵結(jié)構(gòu)示意圖······························································································9

表1鍛件超聲檢測合格質(zhì)量等級················································································10

表2尿素級不銹鋼材料的化學成分（成品分析）·································································11

表3尿素級不銹鋼焊材熔敷金屬的化學成分·································································11

表4尿素級不銹鋼材料力學性能················································································12

表5選擇性腐蝕的深度·······························································································12

表6消除應(yīng)力熱處理溫度····························································································16

表7射線檢測要求·····································································································18

表8超聲檢測要求·····································································································18

表9滲透檢測要求·····································································································19

表10磁粉檢測要求····································································································19

表11尿素級不銹鋼材料晶間腐蝕傾向試驗取樣數(shù)量··························································21

表12尿素級不銹鋼材料晶間腐蝕傾向試驗復(fù)驗取樣數(shù)量····················································22

表13尿素級不銹鋼材料的標志·····················································································23

Ⅱ

GB/T10476—2024

前言

本文件按照GB/T1.1—2020《標準化工作導則第1部分：標準化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

本文件代替GB/T10476—2004《尿素高壓冷凝器技術(shù)條件》，與GB/T10476—2004相比，除結(jié)構(gòu)

調(diào)整和編輯性改動外，主要技術(shù)變化如下：

a）更改了范圍（見第1章，2004年版的第1章）；

b）刪除了術(shù)語及其定義（見2004年版的3.1~3.5）；

c）增加了符號（見第4章）；

d）增加了冷凝器的基本結(jié)構(gòu)（見5.2）；

e）增加了主要零部件技術(shù)要求（見5.3）；更改了換熱管尺寸極限偏差的要求[見5.3.1.2，2004年

版的4.2.2.7a）]；更改了換熱管超聲檢測的要求[見5.3.1.3、表8，2004年版的4.2.2.7b）]；更

改了換熱管耐壓試驗的要求[見5.3.1.4，2004年版的4.2.2.7c）]；

f）更改了尿素級不銹鋼板材表面質(zhì)量、尺寸及尺寸極限偏差的要求（見5.3.2.1，2004年版的

4.2.2.8.1）；更改了管材、棒材進行超聲檢測的要求（見5.3.2.2，2004年版的4.2.2.8.2）；

g）更改了封頭制造的要求（見5.3.3，2004年版的4.3.2）；

h）增加了管板堆焊表面質(zhì)量的要求（見5.3.4.1）；

i）增加了波形膨脹節(jié)的要求（見5.3.5.3）；

j）增加了氣液分布器的要求（見5.3.6）；

k）增加了甲銨液進口用緩沖器的要求（見5.3.7）；增加了甲銨液出口用防渦器的要求（見5.3.8）；

l）增加了支撐格柵的要求（見5.3.9）；

m）增加了支座的要求（見5.3.10）；

n）增加了管口法蘭的要求（見5.3.11）；

o）增加了人孔的要求（見5.3.12）；

p）更改了封頭鋼板超聲檢測合格質(zhì)量等級的要求、封頭板材晶粒度等級的要求（見6.2.1，2004

4.2.1.1

年版的）；增加了封頭鋼板夏比擺錘沖擊試驗溫度及沖擊試驗沖擊吸收能量KV2的要

求、封頭鋼板試件的取樣要求（見6.2.1）；

q）刪除了用于制造管板、管箱筒體、底蓋、頂蓋、上下端凸緣鍛件級別的適用標準（見2004年版

4.2.1.2

的），增加了鍛件的夏比擺錘沖擊試驗溫度及沖擊試驗沖擊吸收能量KV2的要求（見

6.2.2）；增加了鍛件超聲檢測質(zhì)量等級的要求（見6.2.2、表1），刪除了單獨對管板的超聲檢測

的要求（見2004年版的4.2.1.2），將其整合到表1中（見表1，2004年版的表1）；

r）增加了鍛件非金屬夾雜物的要求和取樣位置的要求（見6.2.2）；

s）刪除了低合金鋼焊接接頭常溫下抗拉強度的要求（見2004年版的4.2.1.3）；

t）更改了尿素級不銹鋼材料牌號（見6.3.1、表2、表3、表4、6.3.5.2、表5、表6、表11、表12，2004

年版的4.2.2.1、表1、表2、表3、4.2.2.5、表4、表5、表7、表8）；

u）增加了尿素級不銹鋼冶煉方法及供貨狀態(tài)的要求（見6.3.1）；

v）更改了尿素級022Cr17Ni12Mo2不銹鋼的化學成分中Cr、Mo、S、N的要求，更改了尿素級

022Cr25Ni22Mo2N不銹鋼的化學成分中Mn、S的要求，增加了化學成分B元素含量的要求

（見表2，2004年版的表1）；

w）更改了尿素級不銹鋼焊材熔敷金屬化學成分的要求（見表3，2004年版的表3）；更改了尿素

Ⅲ

GB/T10476—2024

級不銹鋼材料力學性能的要求（見表4，2004年版的表2）；

x）增加了尿素級不銹鋼的焊接材料在20℃時熔敷金屬的斷后伸長率的要求（見6.3.3.2）；

y）更改了尿素級不銹鋼材料鐵素體含量的要求（見6.3.4.2，2004年版的4.2.2.4）；更改了尿素級

不銹鋼材料的晶間腐蝕傾向試驗的要求（見6.3.5，2004年版的4.2.2.5）；更改了尿素級不銹鋼

材料的選擇性腐蝕檢查和金相檢查的要求（見6.3.6、表5，2004年版的4.2.2.6、表5）；

z）增加了焊接接頭分類、堆焊層厚度及襯里板的厚度的要求（見7.1.5、7.1.6）；

aa）更改了材料復(fù)驗的要求（見7.2，2004年版的4.2.3）；

bb）更改了低合金鋼坡口磁粉檢測的要求（見7.3.1，2004年版的4.3.1.1），更改了尿素級不銹鋼件

焊接坡口滲透檢測的要求（見7.3.2，2004年版的4.3.1.2.1）；

cc）更改了換熱管與管板連接的操作和檢驗程序的要求（見7.4.2，2004年版的4.3.5.2）；

dd）增加了管束組裝的要求（見7.4.3）；

ee）更改了襯里組裝的要求（見7.4.4，2004年版的4.3.5.3）；

ff）刪除了對焊工的要求（見2004年版的4.3.6.1），更改了焊接工藝評定、焊接工藝規(guī)程的要求

（見7.5.1、7.5.2，2004年版的4.3.6.2、4.3.6.3）；

gg）增加了焊接操作中對暴露在腐蝕介質(zhì)中的尿素級不銹鋼接管端面焊材覆蓋的要求（見

7.5.3.4）；

hh）增加了尿素級不銹鋼氬弧焊用氬氣純度的要求（見7.5.3.5）；

ii）刪除了返修前應(yīng)經(jīng)制造單位技術(shù)負責人批準的要求（見2004年版的4.3.6.5）；

jj）更改了焊接接頭外觀質(zhì)量的要求（見7.5.5，2004年版的4.3.6、5.1）；

kk）更改了低合金鋼焊接接頭熱處理后的硬度要求（見7.6.9，2004年版的4.2.1.3、4.3.7、5.4）；

ll）更改了產(chǎn)品焊接試件的要求（見7.7.1.2，2004年版的4.3.8.1.2），增加了試件檢驗與評定的要

求（見7.7.1.3)；

mm）更改了母材熱處理試件與試樣的要求（見7.7.2，2004年版的4.3.8.2），增加了試件與試樣檢

驗與評定的要求（見7.7.2.3）；

nn）刪除了精加工表面涂醫(yī)用凡士林的要求（見2004年版的5.6.4）；

oo）更改了無損檢測的要求（見表7、表8、表9、表10，2004年版的表9、表10、表11、表12）；

pp）更改了尺寸檢查的要求（見8.1，2004年版的5.5）；

qq）增加了形狀公差、位置公差和跳動的檢驗方法（見8.2）；

rr）增加了表面粗糙度的檢驗方法（見8.3）；

ss）增加了焊接接頭外觀質(zhì)量的檢驗方法（見8.4）；

tt）增加了表面噴砂除銹處理噴射清理等級的評定方法（見8.5）；

uu）增加了無損檢測的方法（見8.6）；

vv）增加了化學成分分析的試驗方法（見8.7）；

ww）增加了力學性能的試驗方法（見8.8）；

xx）增加了金屬平均晶粒度的檢測方法（見8.9）；

yy）增加了非金屬夾雜物含量的檢測與評定方法（見8.10）；

zz）更改了鐵素體含量的檢測方法（見8.11，2004年版的5.3）；

aaa）增加了晶間腐蝕傾向的試驗方法（見8.12）；

bbb）增加了選擇性腐蝕和金相的檢驗方法（見8.13）；

ccc）更改了硬度的檢測要求（見8.14，2004版的5.4）；

ddd）更改了耐壓試驗的要求（見8.15，2004年版的5.7）；

eee）更改了氣泡泄漏的試驗方法、氨/氦滲漏的試驗方法（見8.16.1、8.16.2，2004年版的5.8）；

Ⅳ

GB/T10476—2024

fff）增加了出廠檢驗的要求（第9章）；

ggg）更改了隨行文件的要求（見10.1，2004年版的第7章）；

hhh）更改了尿素級不銹鋼板材厚度大于或等于5mm時的制造廠標識材料型號等要求（見

10.2.1.1、表13，2004年版的4.2.2.9、表6），增加了尿素級不銹鋼材料之外的其他材料的標

志移植、非尿素級不銹鋼焊接接頭標志的要求（見10.2.1.3、10.2.2.2）；

iii）增加了產(chǎn)品銘牌的要求（見10.2.3）；

jjj）更改了運輸貯存中管程、殼程的保護要求（見10.3.2，2004年版的6.2）。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機構(gòu)不承擔識別專利的責任。

本文件由中國石油和化學工業(yè)聯(lián)合會提出。

本文件由全國化工機械與設(shè)備標準化技術(shù)委員會（SAC/TC429）歸口。

本文件起草單位：大連金重機器集團有限公司、中國五環(huán)工程有限公司、寧波市特種設(shè)備檢驗研究

院、華東理工大學、四川大學、陜西省特種設(shè)備檢驗檢測研究院、天華化工機械及自動化研究設(shè)計院有

限公司。

本文件主要起草人：都吉哲、才紅廣、楊小林、袁丁、牛亞平、呂圣、馬良、江霞、靳紫恒、張曉明、

徐才福、毛國均、張文勇、李玉虎、劉靜、雷鵬利。

本文件于1989年首次發(fā)布，2004年第一次修訂，本次為第二次修訂。