Zhejiang Xinchang Gongsheng Materials Co., Ltd. customizes a stainless steel 10L reaction kettle and delivers it for use

Reaction kettleselection

1. Experimental requirement description

firstWe need to process a set of high-temperature and high-pressure stirred tanks for supercritical water conditionsmaterialCorrosionAbrasion test.draftThe size will be6*8*3The mm small sample block is fixed on the stirring blade under high temperature and high pressure conditionsPerform high-speed operationsrotate.Due to the need for a high rotational linear velocity, the stirring bladeneedLong term work，Therefore, considering the use of the kettle bodyinner diameterChoose a slightly larger one.

2. working conditions

commonly usedOperating Temperature500℃

highOperating Temperature650℃

commonly usedworking pressure:25MPa

highwork pressure（Mainly for situations where there is an excess of materials, which may cause overpressure in a short period of time:30MPa

stirSpeed: 1000Conversion per minute per sessionThe running time is100h。

stirFluid:averageyes500℃、25MPa supercritical water, densityAbout 90kg/m³，dynamic viscosityaboutFor 3 * 10^-5kg/(m×s)

3. preliminarydesign

material selection：Inconel 625

inner diameter：100mm

outer diameter：140mm

height：128mm

volume: About1L

stirring paddleShape:openTurbine agitatorAt the topheadopeningFix the sample block to the mixing blade with boltsup, assembly locationseeBelow，The preliminary design of the mixing blade is shown inimageCAD screenshot.

4. intensity andcost accounting

according toJB/On T 4756Nickel based alloys provided625 at 650 ℃The allowable stress is136MPa，corrosion allowance取0.2mm/a，Calculate the outer diameter140mm、 inner diameter100Mm can basically meet the requirements650℃Time pressure30The requirement of MPa.According to a diameter of 140mm、 Steel with a length of 200mmaccounting，approximatelyneed26kilogramofInconel 625.