斗地主达人

National Hotline:0577-86819338

current location:home / Products / Whole plant equipment design process

Whole plant equipment design process

Method of storage devices

date:2016-07-07 pkcms:
Method of storage devices

Product parameters:

A。 The food industry with stainless steel thin-wall vessel volume should be preferred to choose the value listed in table 1。

2, technical requirements,

2。1 design

2.1.1 food industry with stainless steel thin-wall vessel volume design recommendation favoring volume series parameters of the provisions of this standard.

2.1.2 drawings design process conditions should be fully considered, selecting rational high aspect ratio, the rational allocation of tanks in the attachment.

2.1.3, such as cold rolled stainless steel plate, keep plank of color and roughness, internal and external surface of tank inside weld surface roughness Ra value is not greater than 0.8 microns;If use sand polishing or electrochemical polishing, should maintain uniform inside and outside surface, and the surface roughness Ra value is not greater than 0。8 microns。The vessel shall comply with the terms of GB16798-1997.

2。1。4 container of upper and lower head folding structure should be adopted, the transition arc radius R is not less than 25 mm, or cold forming by cold spinning processing;Tank should be adopted when the hole diameter should not less than 38 mm varus or valgus while, flanging arc radius should not be less than 5 mm.

2。1。5 stainless steel used in the food industry with stainless steel thin wall vessels tanks plate according to process and general medium 0 cr18ni9, 00 cr19ni10, 0 cr17ni12mo2 and 00 cr17ni14mo2, or similar foreign brand material;Stainless steel plate and welding materials should comply with the provisions of the relevant national standards and industry standards.

2。1。6 raw materials shall ensure that its physical and chemical properties to comply with relevant standards, materials into the factory inspection should especially pay attention to appearance inspection, supplier shall provide proof material quality and inspection report。

2.1.7 is generally selected stainless steel plate cold rolled stainless steel coil plate, conforms to the provisions of GB/T3280-1992, the joining together of each tube section of longitudinal seam of tank does not allow more than three;Stainless steel plate width should be preferred to choose 1000 mm, 1219 mm and 1500 mm in three kinds of specifications.

2.1.8 stainless steel welding wire is accord with YB/T5091-1996 the provisions of the welding between 0 cr18ni9 selection of welding wire steel grade for H0Cr21Ni10 or H00Cr21Ni10;00 cr19ni10 welding between the selection of welding wire steel grade for H00Cr21Ni10;0 cr18ni9 and 0 cr17ni12mo2 welding wire or welding between 0 cr17ni12mo2 choose between steel grade for H0Cr19Ni12MO2 or H00Cr19Ni12MO2;00 cr17ni14mo2 welding between the selection of welding wire steel grade for H00Cr19Ni12MO2。

2.2 manufacturing

2.2.1 stainless steel plate in an open-book, schools are not allowed to appear surface scratch at ordinary times, avoid contact with other materials in iron contamination.

2.2.2 tube quarter is expected to expand the length should be according to the actual circumference tank bottom and the lid (in diameter), the deviation is + / - 3 mm.

2。2。3 discharge shall ensure that the requirements of the drawing size, cutting straight line deviation plus or minus 0。5 mm/m, the circular arc deviation R + 1 mm, cut the mouth section cut gaping, blow not a phenomenon that otherwise should be revised。

2.2.4 plate butt joint clearance generally from 0.2 mm to 0.2 mm, and relatively uniform,Maximum amount is less than 1/6 of thickness, docking wrong side of no more than 0.4 mm.

2.2.5 fixed plate joint using argon arc welding spot welding, solder joint surface no oxidation phenomenon, and shall not be higher than the parent metal, otherwise will be smooth.

2。2。6 plate welding argon gas protection welding should be adopted such as inert gas protection welding methods, and comply with the provisions of the JB/T9185-1999。

2.2.7 or lap joint clearance Angle is not greater than 1 mm, partial clearance to allow more than 1 mm, but should be fill before welding.

2。2。8 weld parts shall not have obvious welding deformation, weld width, high uniformity, the weld residual high 0 mm ~ 0。6 mm。

2.2.9 tanks inside weld shall be grinding to flush with the parent metal, the surface roughness Ra value is not greater than 0.8 microns;Weld within 20 mm ~ 25 mm cast light on each side belt, requirement brightness even, neat。

2。2。10 maitreya plate, interpolation plate or coil components such as surface must not have deeper than 0。2 mm of indentation and scratch, otherwise should be finishing。

2。2。11 products production is completed, should be the overall pickling passivation and water processing, water clean, content of chloride ion in water less than 25 mg/L, after pickling passivation may not appear on the surface of the color difference phenomenon;Should be pickling passivation paste when washed clean.

2。2。12 tanks on the part of the carbon steel materials such as bearings, lug and so on, should be antirust treatment and surface coating paint is stipulated in the drawings, and tanks on the carbon steel parts shall be of stainless steel plate。

2.2.13 tank production should be done after the water leakage, test requirements in 6.2.1.

2.3 tank accessories

2.3.1 food industry with stainless steel thin wall vessels under the main accessories such as manholes, manhole, mixer, level gauge, breathing apparatus, sampling valve, spray equipment, cleaning equipment, valves, etc., shall ensure that its quality and installation location, quality should comply with the provisions of the GB16798-1997.

2.3.2 attachment requirements are all made of stainless steel materials, surface polishing treatment, roughness is not greater than Ra1.6.

2.3.3 upper and lower manhole requirements lightweight flexible, personnel in and out of convenience;Breathing apparatus design ventilation should be greater than the biggest circulation in and out of the liquid mouth;All accessories are not allowed to have leakage phenomenon.

2.3.4 the hole on the tank to sleek, flanging flange technology on nozzle, in the form of butt welding, and weld place for grinding and polishing.

2.3.5 side of bottom stirring and mixing of seal appropriate USES in food sanitation standard mechanical seal.


Related Information

0086-577-868 21338

Monday to Friday8:0-18:00 Contact
Zhejiang Zhangda Light Industry Machinery Factory

Add: No. 678, 5th Binhai Avenue, Economic&Technological Development Zone, Wenzhou, Zhejiang, China, 325025

Tel:0086-577-868 21338

Fax:0086-577-868 12338

Emaill: maggie_zd@yeah.net

Scan QR code + follow us

大发麻将 大富翁水果机 幸运快3 皇冠体育网 波克棋牌