Chemical equipment technology develops a tendency

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Advanced petrifaction produces process to want to rely on advanced petrifaction equipment to come true. Accordingly, petrifaction produces technical development to want to pay equal attention to with equipment technology development. To a few kinds of typical petrifaction the article is special undertook introductory with the technical current situation of current equipment and trend. Equipment of our country chemical industry passes 20 old effort, obtain great skill to develop fruit. The key that the institute of main production unit such as purificatory, polyethylene needs among them catalytic cracking, hydrogenation equips, already achieved international advanced level. Reduced what our country imports to chemical equipment to depend on degree, reduced construction investment and manufacturing cost, to promoting petrifaction industry development has main effect, be the same as foreign photograph to compare, equipment of our country chemical industry still has many difference, advocate if chemical industry manufactures a technology,progress and equipment technology development are out of line, the difference of software technology development of major equipment is bigger: Equipment technology develops the rate that does not follow development of technology of art of go to work, the phenomenon of heavy craft, light fixture exists; Basically stay in the degree that imitates development, development has the has a technology only capacity of own intellectual property to lose; Equipment development still cannot be accomplished specialization, seriation; Equipment design and quality of production level, equipment and dependability still remain to rise further. As the progress of chemical craft and development, to chemical industry equipment raised taller requirement. Must increase the development strength of equipment, master the core technology of equipment, form a batch of equipment that have own intellectual property, achieve performance advanced, quality is reliable, efficient energy-saving, economy is safe, satisfy the development requirement of chemical industry. One. Petrifaction is special special device basically includes equipment petrifaction reaction equipment, tower implement, furnace of heat exchange equipment, industry, store motion equipment and special machine. Reaction equipment reactor: Be those who have chemical reaction process " heart " equipment. Its develop a tendency each are not identical, side with on international by experience imitate of enlarge trend maths is magnified, implementation is large change, efficient change, automation of structural simplification, operation, way of synthesization of research technique incline to develops. Catalytic cracking reactor: Production technology of home basically achieved international advanced level, apply extensively at each refinery. Hydrogenation reactor: Abroad's famous manufacturer has Japan to make steel place and Kobe make steel place wait. The 5500mm of external diameter of reactor of forge solder hydrogenation that home is developing for coal chemical industry, mural thick 340mm, weight 2040 tons, it is the heaviest hydrogenation reactor on the world, its difference is difference of ability of our country innovation. Successive reforming folds reactor quadruply: American UOP patent technology makes efficiency of respond of this reaction appliance tall, economic the sources of energy, cover an area of a face to accumulate the good point such as small, economic investment. Home had mastered his to design production technology, inside the requirement that installs index to achieve UOP technology completely to put forward. Ammonia of big chemical fertilizer synthesizes a tower: Have on international representatively horizontal of case of triumphant the name of a river in Shaanxi and Henan provinces synthesizes tower, Tuopusuoli axial of 3 adiabatic type synthesizes tower of synthesis of type synthesis tower, Wu Deli type and Braun tower. The country is immanent digest the foundation that absorb to go up, in 200 thousand tons of ／ year in synthesizing ammoniac plant to build, design first make use monolayer to forging, the diameter is 2. The ammonia with the canister outside 4 meters large wall and double sealed awl synthesizes a tower, had not mastered its completely to design software, also make 300 thousand tons of ／ without the design year the experience of ammoniac synthesis tower. Polypropylene annulus runs reactor: Famous manufacturer is company of Hai Meng spy, the design technology of reactor and software mature gradually. 200 thousand tons of ／ year reactor of polypropylene annulus canal already developed a success in home, receive promotion application in Shanghai petrifaction. Already mastered annulus to provide reactor structure design, built model of assorted stress numerical analysis, solved annulus to manage issue of technology of reactor project enlarge, technical level and abroad comparative. Superhigh pressure of high-pressured polyethylene plant runs type reactor: Of foreign control technology have the company such as Japan, Germany, United States and Holand: Home absorbed development to succeed through digesting 30 thousand tons of ／ year with 200 thousand tons of ／ year reactor of type of extrahigh voltage canal and condenser. Compare with foreign photograph, expression is developed in craft software and design a technology to exist bigger difference. Home uses the method of deep Kong Zuan only, overall material utilization factor is low. In addition, still do not have special standard and order goods technical condition. Large and aggregate boiler: Abroad takes beater to react boiler technology compares maturity, can develop all sorts of beater configuration according to different stock and parameter series. The biggest aggregate boiler with domestic successful development is 70 thousand tons of ／ year boiler of polymerization of 90m3 of plant of high density polyethylene. 100 thousand tons of ／ year polyester reactor, already built ester is changed and the response rate model of each processes mixes condensation polymerization process model. Offerred engineering technology software and each reactor structure, conduct heat requirement, the ester that asks for chemical fibber development for appearance converts reactor and condensation polymerization reactor, already threw production. With the country heterodyne is apart from basically is beater sort ability of little, type selecting is weak. Heat exchanger of heat exchange equipment is the important equipment in petrifaction production, almost all process have heat, refrigeration or condensation process, because this also is important energy-saving equipment. As industrial device large change reach efficient change, foreign heat exchanger also tends large change, develop to direction of loss of low difference in temperature, low-pressure power. Heat exchanger of Ban wing type (cold box) : Cold box basically applies in liquefaction of depart of ethylene splitting decomposition, air, natural gas, crucial technology is design technology is mixed production technology, american S - W company and the technology such as company of German forest heart are more advanced and mature. The key that Hangzhou makes oxygen engine plant introduce the United States machines equipment - furnace of solder of large vacuum drill rod, make approach of the design level of cold box, engineering capability is mixed achieved international advanced level, in Yan Shan, raise child, in waiting for ethylene to transform, Shanghai gets applied. Abroad already had 9.

0Product of MPa cold box, home still does not master high pressure to design and make a technology of cold box. In segregate fractional distillation technical respect difference is bigger. Board shell type heat exchanger: Company of only France Packinox can be produced use at catalytic reforming and hydrogenation device, the largest heating surface area amounts to 8000m2. Home develops the biggest conduct heat the area is 3000m2, the sheet that main difference is development is accumulated one-sidedly identical, but heating surface area is lesser. Abandon heat boiler: It is important energy-saving equipment, commonly used compare in technology of ethylene splitting decomposition and company of Borsig of the Germany in synthesizing ammoniac plant, American Kellogg company advanced. Domestic key undertook integrated technology develops useless heat boiler of float head type, still began other form to change the experiment research that enrages crucial technology at the same time, development went whole stress of design, small tube plate is finite pipe of computation and yuan of analysis, fire abandons numerical value of the loop inside heat boiler the large order such as computation and analysis, the useless heat boiler of type of head of the first float of development is used at total factory of Sichuan chemical industry 200 thousand tons of ／ year synthetic ammonia plant, but had not have made 300 thousand tons of ／ year change gas to abandon heat boiler. Industrial furnace differs according to the utility in petrifaction production can divide for furnace of heating furnace, splitting decomposition, change furnace to wait. Furnace of ethylene splitting decomposition: The company that has this technology basically has ABB, KBR, S&W, KTI and Linde to wait, the direction that engineering technology controls towards high temperature, brief retention period and low hydrocarbon cent develops, with rising further alternative, reduce investment to wait. From the point of overall level, technology of our country splitting decomposition still has bigger difference with world level, main show is in device scope is little, raw material is used up, cost of specific power consumption, production is high, device cycle of run is short, control level is low, the technology repeats introduce, pace of development, innovation is slow. Change furnace and vaporization furnace: Company of engineering of chemistry of empire of the company of pattern of the name of a river in Shaanxi and Henan provinces of main concerned Guokai that abroad develops large industrialized device, England, Denmark holds general search firm in the palm to wait. 200 thousand tons of ／ that domestic design makes year make synthetic ammonia plant change furnace mediumly for raw material with natural gas, among them wing of solder of frequency of stage high of pipe of high temperature heat, convection piece the canal develops a success by home first, but up to now 300 thousand tons of homebred without ／ year change furnace to be used at industrial device. Vaporization furnace home still cannot be designed by oneself, majority of nozzle of water coal oar counts an import. Tower implement tower implement the intention in process is being changed in stone basically is fractional, absorb, strip, extractive, catharsis, reclaim, second birth, dehydrate and gas are purified and refrigeration. Have board type tower and filling tower commonly usedly, foreign tower implement basically be in the tower dish go up to be improved ceaselessly with filling technology. Our country developed the board type tower with a lot of good performance and filling tower nearly 20 years, already got applied extensively in device of petrifaction, oil refining, function is in international advanced level. Have among them representative basically have appropriate the DT tower at flux of processing tall liquid dish, appropriate at flux of processing expensive gas come back shed a tower dish, have Gao Cao to make flexibility reach efficient stereo send qualitative tower dish and breaker plate one filling is compound the tower. For Luoyang and Daqing 5 million tons of ／ year the decompression tower diameter of the tower of big template type that lube refinery configures respectively and large filling tower amounts to ~p8400mm, develop by home ' tower of P10000mm large rectify is about to throw use. The special machine with commonly used production of special and mechanical petrifaction basically includes turbine of filter, centrifugal, flue gas, drier and extruding to build a machine to wait. Filter: The ketone benzene dewax that basically is used at refinery to undertake oily candle departs turns rouse vacuum filtraction machine and PTA device vacuum to turn bosomy filter. Current, turn rouse abroad of vacuum filtraction machine forward big norms, high rate, high accuracy, full automatic way develops. Home is the design that introduces from Italian EIMCO company, production technology, be absorbed via digesting and improve, formed treatment of one a complete set of, group right, welder art trick. Under photograph comparing, main difference is insufficient to understanding of market development, product requirement, innovation capacity is small, poorer to introducing technical marrow to digest. Centrifugal: Basically vertical and horizontal solids discharge by scroll conveyor sedimentation type centrifugal. Development of foreign centrifugal technology is rapidder, and came true to specialization with seriation. One N of LWFl000 of the El that home develops, type with LWFl050 one N centrifugal already was used at 7 ～ respectively 100 thousand tons of ／ year the depart of the suspension fluid of plant of high density polyethylene, the LWl2001980 of development centrifugal is used at 22. 50 thousand tons of ／ year the dehydrate of PTA size, centrifugal turns bosomy diameter achieves φ 1200mm. But vertical centrifugal still is in preliminary imitate level. Comparing main difference with foreign photograph is to designing technology, product large change and on seriation. Flue gas turbine: It is the important energy in catalytic cracking device recovers equipment, technology of German GHH company is more mature. The YL33000A that home develops and turbine of YL35000A flue gas, already applied at 300 ～ 3.5 million tons of ／ year device of heavy oil catalytic cracking, the mark is worn achieve international advanced level, drier: Does machinery of island of Japanese Mitsui shipbuilding, month reach German FAUVET? The production diameter of GIREL amounts to φ 4000mm above. 200 thousand tons of ／ year drier of circumgyrate of HDPE steam valve and 400 thousand tons of ／ year drier of circumgyrate of valve of TA plant steam already came true homebred change. Difference basically is expressed facility is large now change an aspect, 400 thousand tons of ／ that shortly will build year ～ 500 thousand tons of ／ year polyethylene and polypropylene device and 600 thousand tons of ／ year the large drier of polyester device, home remains to develop. Extruding creates an opportunity: This equipment can mix polymer course refine, extruding, build the process such as bead to make a polyolefin bead material, carry in order to go to the lavatory. Abroad has German WP company, Japan to make the company with the not much amount to such as steel place own a design only, make large the ability that mixes refine to make technology of bead set whole set, its mainstream mixes refine to build bead aircrew direction to develop towards double screw. Speed of our country development is more backward, what develop development at present is much in be small type, ABS10000 ton class mixes refine extruder to run assessment via production, main technique index already achieved design requirement. At present large and medium-sized the manufacturing unit extruding of polyolefin builds a machine to rely on an entrance entirely. 2. Petrifaction is general current equipment basically includes equipment petrifaction aeriform compressor, petrifaction uses pump and valve to wait. Aeriform compressor: Aeriform compressor is to produce pressure to be able to be mixed the crucial fixture that transports gas, have turbine type compressor and reciprocating type compressor: The design that basically has the state such as Japan, United States, Germany, Italy, Switzerland and production technology is more advanced. Long-term since after home is developed independently or be being introduced, captured many difficulty, had major breakthrough. Among them centrifugal compressor and axis sort type of horizontal analyse cent type compressor is close to international the advanced level of congener product. Centrifugal type compressor: The development direction on international is the capacity increases, development high pressure, little flow, low noise, efficient compressor product. Home produces an enterprise to amount to more than 10, especially Shenyang air-blower air-blower of factory, Shanghai air-blower factory, Shaanxi the factory. Hi-tech of domestic centrifugal compressor, tall parameter, high quality and special product still cannot satisfy need, 50 ％ left and right sides relies on foreign entrance even. Go up to still have difference with abroad in sex of technical level, quality, whole set additionally, the experience that has not matured on large gas compressor is made in the design. Reciprocating type compressor: Use prize outfit generally not to have design of low noise of foundation, whole cover, greatly managing installation, foundation and debug charge. Manufacturer home of home has many 20, already formed L, D, DZ, H, M model etc tens of hundreds kinds of compressor series, product, but compressor of large move back and forth still cannot satisfy need. The petrifaction on industrial pump international basically has company of gauss of company of Swiss Su Ershou, German KSB company, United States to wait with pump manufactory. Petrifaction matures quite with the manufacturing technology of pump, norms breed is much, standardization rate is high, developing way basically is large change, high speed is changed, electromechanical unifinication and pump product whole set are changed. Especially microtherm and high temperature pump, ultralow temperature pump, high speed pump, accurate and metric pump, anti-corrosive pump, carry ropy medium and belt development of technology of pump of solid grain medium, screen pump is very rapid. Domestic production makes manufacturer 100 many, formed pump of 100 many series, 2000 many breed kind product production technology and manufacturing equipment, satisfied the need that petrifaction produces. Compare with abroad, domestic petrifaction is designing method of academic, design to go up to lag behind quite with pump, product development is used more be modelled on and the method of analogy, lack theoretical foundation and experimental research data; Treatment equipment and craft level are more backward, treatment precision is low, manufacturing efficiency is low; Range of products is changed and generalization rate is not high, norms breed is little; Outside can waiting for a respect to be the same as a country, pump efficiency, quality and dependability, sealed function, corrosion resistance is compared still have bigger difference, because this petrifaction still has more import with pump. CNC Milling