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【设计及技术圈】 / Design & Technical
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#3593116
Arrangement of the exhaust safety valve bracket at the top of the equipment - HCBBS Forum
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#5503505
Regarding the issue of installing check valves on the nitrogen sealing pipeline of methanol storage tanks - HCBBS Forum
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#3134464
【Daily Question】Theoretical Foundation 2020.12.08 - HCBBS Forum
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#3943130
Questions regarding pipeline naming - HCBBS Forum
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#5680034
How much is the total investment cost for a 10,000-ton hydrogen production project? - HCBBS Forum
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#2938824
【Daily Question】Theoretical Foundation 2020.03.19 - HCBBS Forum
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#2779168
On the heat of solution of hydrofluoric acid - HCBBS Forum
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#2780420
Why do heat exchangers need to be cleaned? - HCBBS Forum
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#2896854
【Daily Question】Theoretical Foundation 2020.01.18 - HCBBS Forum
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#2922026
【Daily Question】Theoretical Foundation 2020.02.27 - HCBBS Forum
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#2913235
Help needed - HCBBS Forum
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#2890692
[Daily Question] Theoretical Basis 2020.01.11 - HCBBS Forum
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#2896556
[Daily Question] Theoretical Basis 2020.01.17 - HCBBS Forum
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#2912610
【Daily Question】Theoretical Foundation 2020.02.14 - HCBBS Forum
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#2920793
[Daily Question] Theoretical Basis 2020.02.26 - HCBBS Forum
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#2897974
【Daily Question】Theoretical Foundation 2020.01.19 - HCBBS Forum
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#2895796
How to calculate the boiling point of ethylene at 4.3 MPa? - HCBBS Forum
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#2901883
【Daily Question】Theoretical Foundation 2020.01.23 - HCBBS Forum
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#5713742
【Haichuan Equipment Guessing Game】--Has many people seen something torn apart like this before? ? - HCBBS Forum
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#5709855
2025 Shandong Province Fire Protection Design Review and Acceptance for Construction Projects: Troubleshooting Guide, Ve
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#5718549
[History of Haichuan Chemical] The lost chemical factory--Yongji Shanxi Pesticide Factory - HCBBS Forum
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#5723340
【Haichuan Quality Articles Sharing】Modular design method for large-scale electrolytic hydrogen production systems - HCBB
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#5704830
Yulin Chemical signed an EPC general contract for the air separation unit, methanol distillation unit, and polypropylene
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#5695617
Meeting on the 500,000 tons/year methanol-to-ethanol project of Shaanxi Yanchang Petroleum Yulin Kaiyue Coal Chemical Co
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#5716811
The review meeting for the process package of Hengyi Energy Technology (Turpan) Co., Ltd.’s 2.4 million tons per year pr
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#5707206
【Haichuan EPC】Analysis of Difficulties in the Procurement Management of EPC Projects! - HCBBS Forum
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#5680159
【Ten Years of Rapid Development in Chemical Equipment】The world’s largest olefin plant by scale was officially completed
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#5714674
Design of fiber-drawn torch barrel and fiber-drawn structure - HCBBS Forum
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#5716564
【Common Issues in Haichuan Pipeline Design】--What are the problems with installing boiler gas vent pipes in this way? -
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#5715409
Bid invitation for EPC of the torch unit, foundation treatment, and pile construction works for the industrial demonstra
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#5701258
Stratifier drawings, CAD version converter - HCBBS Forum
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#5671748
Is hydrogen a highly hazardous or moderately hazardous medium? - HCBBS Forum
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#5679252
Online calibration of safety valves - HCBBS Forum
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#5712838
Meeting held for the overall design review of Sinopec Great Wall Energy Chemical’s 800,000 tons/year coal-to-olefins upg
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#5704407
[Haichuan Overseas Engineering] CNOOC Engineering signs an $800 million EPCI turnkey project contract with Thai PTTEP fo
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#5695376
Review of the four PE and PP units for Phase 1 of the second phase of Yulin Chemical’s 15 million tons per year coal sor
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#5715828
【Haichuan Safety Discussion】Hidden Dangers Around Us – The blast-resistant control room (central control room) has two d
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#5706317
Announcement on the Results of the Bidding Process for the Production of Benzene from Cyclohexane in the Shenhua Yulin C
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#5713956
[Haichuan Overseas Engineering] China National Chemical Corporation Tianchen has received the award letter for the ethyl
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#5708558
Discussion on the design of U-shaped bends - HCBBS Forum
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#5675673
Domestic methanation catalysts: the localization rate for the equipment reaches 95%! Xinjiang Qinghua prepares for the s
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#5696640
The OPC program of Global Hebei Company has passed the tests - HCBBS Forum
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#5698679
Sinochem Southwest Institute won the bid for the procurement contract of the PSA pressure swing adsorption unit for hydr
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#5707347
The \"Code for Process Design of Safety Pressure Relief Systems in Petrochemical Plants\" will come into effect on Novem
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#5698509
550,000 tons of coal to produce synthetic ammonia, and 750,000 tons of urea! Public Announcement on the Capacity Replace
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#599495
What is the NRTL equation? - HCBBS Forum
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#5680578
Issues with the pipeline material for trichlorothione - HCBBS Forum
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#5716559
Understanding the storage requirements for hazardous chemical warehouses - HCBBS Forum
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#5675724
Announcement on Jiangsu Hengfeng New Materials’ Project to Invest 1 billion yuan to produce 58,000 tons per year of elec
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#5713677
Bid Invitation for Biomass Gasification Process Package and Technical Services for the First Phase of Handan Biomass Gre
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#5710918
China Global has been pre-selected to undertake the general contracting of light hydrocarbon cracking technology for She
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#5704576
【HaiChuan Discussion】The client’s demands are getting higher and higher, while the prices kept being pushed lower. Can s
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#5724090
【History of Haichuan Chemical Industry】Chen Jianyuan – Pioneer and master designer in China’s defense chemical industry,
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#5696942
Safety distance for the rest area at the 50160 loading/unloading platform - HCBBS Forum
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#5719722
【Haichuan Building Design Review】Why must the information on the drawings, plans, and certificates of conformity be cons
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#5722745
Comprehensive Book on Safety Technologies for Hazardous Chemicals - HCBBS Forum
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#5710742
The Aspen simulation for the organic amine-based CO2 capture process keeps giving errors; I don’t know how to fix it. -
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#5720887
【Common Issues in Haichuan Pipeline Design】--Design Principles for Safety Valves and Their Pipelines - HCBBS Forum
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#5713306
Key points for selecting process equipment in H12MDI - HCBBS Forum
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#5700547
Issues with the installation of the safety valve discharge outlet - HCBBS Forum
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#5685195
The 21.88 billion yuan investment in Dushanzi Petrochemical’s 1.2 million tons per year second-phase ethylene project ha
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#5704760
【Haichuan EPC】Common design issues and common design defects - HCBBS Forum
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#5717109
Saiding Corporation successfully won the EPC general contract for China’s largest single set of 500t/h phenol-amine reco
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#5703651
Chengda Engineering successfully signed the EPC general contract for the second production line of 25,000 tons per year
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#5704129
BPEC’s G-B9 Tower Ladder Diagram Collection - HCBBS Forum
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#5703005
The contract value is 4 billion dollars! The Qatar BH EPIC EPC project, the largest international offshore oil and gas e
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#5710516
Announcement of the winning bidder for Bid Section 1: High-tech services related to seven process technologies for six u
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#5703348
【Common Issues in Haichuan Pipeline Design】--Installation of Eye Wash Stations and Related Requirements - HCBBS Forum
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#5711300
When flanged valves are connected directly, should the vertical lines in the middle be drawn or not? How many should the
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#5703313
【Common Issues in Haichuan Pipeline Design】--Nitrogen Setting Requirements - HCBBS Forum
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#5682923
Acetic acid and its derivatives - HCBBS Forum
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#5682712
Seeking help with domestic chemical engineering PID CAD software - HCBBS Forum
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#5701764
Zhongkong Technology won the bid for the Liaoyuan Tianying project, whose total investment amounts to 30.4 billion yuan;
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#5717973
Yichang issues regulations on the management of the chemical pilot plant construction - HCBBS Forum
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#5682586
The complete book on chemical equipment design, page 78 on mixing equipment – does anyone have a clear copy? Seeking hel
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#5717117
【Haichuan Safety Discussion】Hidden Dangers Around Us – Lack of Load-Bearing Support for Vertical Pipes in Distillation T
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#5681097
Seeking advice on how to design VOC gas pipelines - HCBBS Forum
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#5721249
【Common Issues in Haichuan Pipeline Design】- Complete set of hand-drawn color illustrations from SH/T3012, Code for the
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#5705328
[Common issues in pipeline design by Haichuan] Anti-corrosion and thermal insulation of low-temperature pipelines - HCBB
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#5691703
【Ten Years of Rapid Development in Chemical Engineering Equipment】Products developed by the Aerospace Power Research Ins
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#5707738
“Design Code for Liquid Hydrogen Storage and Refueling Stations” has been officially implemented - HCBBS Forum
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#5677076
Fire classification for plants using natural gas as fuel - HCBBS Forum
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#5693026
With a steam medium pressure of 39 kilograms and a temperature of 250 degrees, can S30408 steel plate be used? - HCBBS F
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#5703770
【Haichuan EPC】EPC project construction drawing budget control: Saving money or spending more – it all comes down to this
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#5707433
【Common Issues in Haichuan Pipeline Design】--For valves in confined spaces such as pits, it is necessary to consider usi
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#5696165
Valuable Soviet documents: Corrosivity of titanium and titanium alloys - HCBBS Forum
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#5679715
Brothers, Operation Manual for Demethylation of Toluene to Produce Benzene - HCBBS Forum
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#5716166
Sinopec Shanghai Engineering and Hualu Engineering signed the EPC general contract for the first phase of the Yulin Coal
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#5704365
【Common Issues in Haichuan Pipeline Design】Why does fire water need to be filtered? - HCBBS Forum
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#5676585
Experts say offices should not be located near sewage ponds. How far away should an office be from such ponds? Are there
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#5706945
【Common Issues in Haichuan Pipeline Design】How should the remote shut-off valves and check valves for liquefied hydrocar
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#5726290
I would like to ask everyone how to set the pressure interlock value for atmospheric-pressure reaction vessels - HCBBS F
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#5717616
【Ten Years of Rapid Development in Chemical Equipment】3080–2026: China’s first comprehensive evaluation standard for sma
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#5697555
Judgment of pressure pipelines with jacketing - HCBBS Forum
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#5716415
With a total investment of 3.3 billion yuan, China Wuhuan signed the EPC contract for the Xinxiangyun phosphorus-based n
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#5697584
The 14.8-billion-yuan Fujian Haichen Chemical project, which has an annual production capacity of 400,000 tons of adipon
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#5675368
【Ten Years of Rapid Development in Chemical Equipment】The CNBG Baogang Liquefied Hydrocarbon Storage Facility project se
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#5715886
What are the bottlenecks in the domestic production process of COC-based display films? - HCBBS Forum
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#5699113
The Shabik PKN MTBE project in Saudi Arabia, which was under the general contract of China’s Tianchen Chemical Company,
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#5723667
Loading and unloading process flow for hydrofluoric acid tank area - HCBBS Forum
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