T40B Data Sheet

Special features

?Nominal (rated) torques 50N V m,100 N V m, 200 N V m, 500 N V m,1 kN V m, 2 kN V m, 3 kN V m, 5 kN V m and 10 kN V m

?Nominal rated rotational speed up to 24000 rpm (depending on nominal range and option)?Accuracy class 0.05(50N V m: 0.1)

?Large measurement frequency range up to 6 kHz (?3 dB)

?Digital transmission of measured values

?Compact design

?Low rotor weights and mass moments of inertia

?Optional: rotational speed measuring system, reference signal

Torque Flange

T40B

B3406?13.0 en

1

Overall concept

Specifications

Type

T40B

Accuracy class

0.1

0.05

Torque measuring system Nominal (rated) torque M nom

N ?m 50

100

200

500

kN ?m 1

2

3

510Nominal (rated) rotational speed standard speed (option M)U/min 20000150001200010000high speed (option H)

U/min

24000

22000

16000

14000

12000

Non-linearity including hysteresis,related to the nominal (rated) sensitivity Frequency output

For a max. torque in the range:

between 0% of M nom and 20% of M nom > 20% of M nom and 60% of M nom > 60% of M nom and 100% of M nom %%%<"0.01<"0.02<"0.03

Voltage output

For a max. torque in the range:

between 0% of M nom and 20% of M nom > 20% of M nom and 60% of M nom > 60% of M nom and 100% of M nom

%%%

<"0.01<"0.02<"0.03

Relative standard deviation of the repeatability,

per DIN 1319, related to the variation of the output signal <"0.03<"0.03

Frequency output %Voltage output

%

Temperature effect per 10 K in the nominal (rated) temperature range

on the output signal, related to the actual value of the signal span

Frequency output %"0.1"0.05Voltage output

%"0.4"0.2

on the zero signal, related to the nominal (rated)sensitivity

Frequency output %"0.1"0.05Voltage output

%"0.2"0.1

Nominal (rated) sensitivity (span between torque = zero and nominal (rated) torque)

Frequency output 10 kHz / 60 kHz / 240 kHz Voltage output

kHz V 5/30/12010

Sensitivity tolerance (deviation of the actual output quantity at M nom from the nominal (rated) sensitivity)Frequency output Voltage output

%%"0.1"0.1Output signal at torque = zero Frequency output kHz 10/60/240

Voltage output

V

Nominal (rated) output signal Frequency output

with positive nominal (rated) torque kHz 15 1) / 90 2) / 360 3) (5 V symmetrical 4))with negative nominal (rated) torque kHz 5 1) / 30 2) / 120 3) (5 V symmetrical 4))

Voltage output

with positive nominal (rated) torque V +10with negative nominal (rated) torque

V ?10Load resistance Frequency output k Ω≥ 2Voltage output

k Ω≥ 10Long-term drift over 48 h at reference temperature Frequency output %t"0.06t"0.03Voltage output

%t"0.06

t"0.03

Measurement frequency range, ?3 dB kHz 1 1) / 3 2) / 6 3)

Group delay μs t 400 1) / t 220 2) / t 150 3)

Residual ripple Voltage output 5)

mV

t 40

1)Option 5, 10"5 kHz (code SU2)2)

Option 5, 60"30 kHz (code DU2)3)Option 5, 240"120 kHz (code HU2)

4)RS?422 complementary signals, note termination resistance.5)Signal frequency range 0.1 to 10 kHz B3406?13.0 en

HBM

2

Maximum modulation range 6)Frequency output kHz 2.5 to 17.5 1) / 15 to 105 2) / 60 to 420 3)

Voltage output

V

?12 to +12

Energy supply

Nominal (rated) supply voltage (separated extra-low DC voltage)

V 18 to 30Current consumption in measuring mode A < 1

Current consumption in startup mode A < 4 (typ. 2) 50 μs

Nominal (rated) power consumption W < 10Maximum cable length

m 50Shunt signal

approx. 50% of M nom

Tolerance of the shunt signal, related to M nom %0.05

Nominal (rated) trigger voltage V <"536min. >2.5max. <0.7

Trigger voltage limit V Shunt signal ON V Shunt signal OFF

V

Rotational speed measuring system Measurement system Magnetic, via AMR sensor (Anisotropic Resistive Effect) and magnetized

plastic ring with embedded steel ring

Magnetic poles

7286108126156

Maximum positional variation of the poles 50 angular seconds Output signal

V

5 V symmetrical (RS?422);

2 square wave signals approx. 90° phase shifted

Pulses per revolution

1024Min. rotational speed for sufficient pulse stability rpm

0Pulse tolerance 7)

degrees <"0.05Maximum permissible output frequency

kHz 420

Group delay

μs <150Radial nominal (rated) distance between sensor head and magnetic ring (mechanical distance)

mm 1.6Working distance range between sensor head and magnetic ring

mm 0.4 to 2.5Max. permissible axial displacement of the rotor to the stator 8)

mm

"1.5

Hysteresis of direction of rotation reversal in the case of relative vibrations betw. rotor and stator Torsional vibration of the rotor

degrees

Magnetic load limit

Remanent flux density mT >100Coercive field strength

kA/m >100Permissible magnetic field strength for signal deviations kA/m <0.1

Load resistance 9)

k Ω

≥2

Reference signal measuring system (0 index)Measurement system Magnetic, with Hall sensor and magnet

Output signal

V 5 V symmetrical (RS-422)

Pulses per revolution

1Min. rotational speed for sufficient pulse stability rpm 2Pulse width, approx.

degrees 0.088Pulse tolerance 7)degrees <"0.05Group delay

μs <150Axial nominal (rated) distance between sensor head and magnetic ring (mechanical distance)

mm 2.0Working distance range between sensor head and magnetic ring

mm 0.4 to 2.5Max. permissible axial displacement of rotor to stator 8)

mm

"1.5

6)Output signal range in which there is a repeatable correlation between torque and output signal.7)At nominal (rated) conditions.

8)The data refers only to a central axial alignment. Deviations lead to a change in pulse tolerance.9)

Note the termination resistances as per RS?422.

B3406?13.0 en

HBM

3

General information EMC

Emission (per FCC 47, Part 15, subpart C) 10)?Emission (per EN 61326?1, Section 7)RFI field strength) 11)

?Class B Immunity from interference (EN 61326?1, Table 2)10100481110Electromagnetic field (AM)V/m Magnetic field

A/m Electrostatic discharge (ESD)

Contact discharge kV Air discharge

kV Fast transients (burst)kV Impulse voltages (surge)kV Conducted interference (AM)

V

Degree of protection per EN 60529IP 54

Reference temperature

°C 23+10 to +70?20 to +85?40 to +85Nominal (rated) temperature range °C Operating temperature range 12)°C Storage temperature range

°C

Mechanical shock per EN 60068?2?27 13)10003650

Number n Duration

ms Acceleration (half sine)

m/s 2

Vibrational stress in 3 directions per EN 60068?2?6 13)Frequency range Hz 10 to 2000

Duration

h 2.5Acceleration (amplitude)m/s 2200

Load limits 14)

Limit torque, related to M nom 15)

%400200160Breaking torque, related to M nom 15)%800> 400> 320Longitudinal limit force 16)kN 5510131930356080Lateral limit force 16)

kN 112459101218Limit bending moment 16)

N ?m 50501002002205606008001200Oscillation width per DIN 50100 (peak-to-peak) 17)

N ?m

200

2004001000

2000400048008000

16000

10)Option 7, Code U 11)Option 7, Code S

12)Heat conductance via the stator base plate necessary over 70°C. The temperature of the base plate must not exceed 85°C.13)The antenna ring and connector plug must be fixed.

14)

Each type of irregular stress (bending moment, lateral or longitudinal force, exceeding nominal (rated) torque), can only be permitted up to its specified load limit, provided none of the others can occur at the same time. If this condition is not met, the limit values must be reduced. If 30% of the limit bending moment and lateral limit force occur at the same time, only 40% of the longitudinal limit force is permissible and the nominal (rated) torque must not be exceeded. The effects of permissible bending moments, longitudinal and lateral forces on the measurement result are v"0.3% (50Nm: v"0.6%) of the nominal (rated) torque. The load limits only apply for the nominal (rated)

temperature range. At temperatures t 10°C, load limits are expected to reduce by up to 30%, because the strength reduction increases as the temperatures fall.15)With a static loading.16)Static and dynamic.

17)

The nominal (rated) torque must not be exceeded.

B3406?13.0 en

HBM

4

The influence of radial deviations, impact, defects of form, notches, marks, local residual magnetism, structural variations or material anomalies on the vibrational measurements needs to be taken into account and isolated from the actual undulation.19)Above the nominal (rated) temperature range: ±1.5mm.

B3406?13.0 en

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5

Measuring range (N V m)Axial runout tolerance (mm)Radial run-out tolerance (mm) 500.010.01

1000.010.01

2000.010.01

5000.010.01

1 k0.010.01

2 k0.020.02

3 k0.020.02

5 k0.020.02

10 k0.020.02

HBM6

B3406?13.0 en

7

B3406?13.0 en HBM

Code S, continued

HBM8

B3406?13.0 en

Code U

9

B3406?13.0 en HBM

Code U, continued

HBM10

B3406?13.0 en

11

B3406?13.0 en HBM

continued

HBM12

B3406?13.0 en

13

B3406?13.0 en HBM

HBM14

B3406?13.0 en

15

B3406?13.0 en HBM

Code S, continued

HBM16

B3406?13.0 en

17

B3406?13.0 en HBM

HBM18

B3406?13.0 en

19

B3406?13.0 en HBM

Code S, continued

HBM20

B3406?13.0 en

XL1509 datasheet

2A 150KHz 40V Buck DC to DC Converter XL1509 Features Wide 4.5V to 40V Input Voltage Range 3.3V,5V,12V, and adjustable versions Output Adjustable from 1.23V to 37V Maximum Duty Cycle 100% Minimum Drop Out 1.5V Fixed 150KHz Switching Frequency 2A Constant Output Current Capability Internal Optimize Power Transistor High e fficiency Excellent line and load regulation TTL shutdown capability ON/OFF pin with hysteresis function Built in thermal shutdown function Built in current limit function Built in second current limit function Available in SOIC8 package Applications LCD Monitor and LCD TV Digital Photo Frame Set-up Box ADSL Modem Telecom / Networking Equipment General Description The XL1509 is a 150 KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 2A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function is built inside. When second current limit function happens, the operation frequency will be reduced from 150KHz to 50KHz. An internal compensation block is built in to minimize external component count. Figure1. Package Type of XL1509

工艺设计及FD设计

工艺设计及PFD设计 在化工装置设计中，除了工艺系统设计以外，还有管道、设备、机械、建构筑物、公用工程、电气、仪表、安全卫生、消防、分析化验、环境保护等领域的设计工作，还要从全局考虑总平面布置、原料和产品的输送及设计方案的技术经济性，这些都需要在化工工艺系统设计中充分考虑，所以说化工工艺系统设计是一门综合的技术。在各个设计阶段中，作为设计主体的化工工程师，必须与其他各专业密切沟通，相互配合，才能完成整个设计任务。这就要求化工工程师不仅精通、熟悉有关的标准规范和设计技能，并能在工程设计项目中恰当地应用、执行它，同时还要具备较广泛的相关专业知识。 国内工程设计阶段一般分为初步设计阶段和施工图设计阶段，国际上通行的作法是分为工艺包设计阶段、基础设计阶段和详细设计阶段。 在化工工艺系统设计中，工艺流程设计的各个阶段的设计成果都是通过各种流程图和表格表达出来，按照设计阶段的不同，先后有方框流程图（block flowsheet）、工艺流程草（简）图（simplified flowsheet）、工艺物料流程图（Process Flow Diagram即PFD）和管道仪表流程图（Piping & Instrumentation Diagram 即P&I D）〈也有用“带控制点的工艺流程图(Process and Control Diagram 即PCD”代替P&ID)〉等种类。对于医药行业来说，根据其特有的生产洁净区级别要求，还有人员-物料分流图（Material and Personnel Flow Drawing）、工艺流程及环境区域划分示意图（Plant Schematic and Process Flow Diagram）等。 下面对工艺设计、工艺包设计内容及PFD的设计作简单介绍。 一、工艺设计

Si3401-datasheet

Rev. 0.9 8/07 Copyright ? 2007 by Silicon Laboratories Si3400/Si3401 This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Si3400Si3401 F U L L Y -I N T E G R A T E D 802.3-C O M P L I A N T PD I N T E R F A C E A N D S W I T C H I N G R E G U L A T O R Features Applications Description The Si3400 and Si3401 integrate all power management and control functions required in a Power-over-Ethernet (PoE) powered device (PD)application. The Si3400 and Si3401 convert the high voltage supplied over the 10/100/1000BASE-T Ethernet connection into a regulated, low-voltage output supply. The optimized architectures of the Si3400 and Si3401minimize the solution footprint, reduce external BOM cost, and enable the use of low-cost external components while maintaining high performance.The Si3400 and Si3401 integrate the required diode bridges and transient surge suppressors, thus enabling direct connection of ICs to the Ethernet RJ-45 connector. The switching power FET and all associated functions are also integrated. The integrated switching regulator supports isolated (flyback) and non-isolated (buck) converter topologies. The Si3400 and Si3401 support IEEE STD? 802.3-2005 (future instances are referred to as 802.3) compliant solutions as well as pre-standard products, all in a single IC. Standard external resistors connected to the Si3400 and Si3401 provide the proper 802.3 signatures for the detection function and programming of the classification mode. Startup circuits ensure well-controlled initial operation of both the hotswap switch and the voltage regulator. The Si3400and Si3401 are available in low-profile, 20-pin, 5x 5mm QFN packages.While the Si3400 is designed for applications up to 10W, the Si3401 is optimized for higher power applications (up to approximately 15W). See also “AN313: Using the Si3400/01 in High Power Applications” for more information. IEEE 802.3 standard-compliant solution, including pre-standard (legacy) PoE support Highly-integrated IC enables compact solution footprints Minimal external components Integrated diode bridges and transient surge suppressor Integrated switching regulator controller with on-chip power FET Integrated dual current-limited hotswap switch Support non-isolated and isolated switching topologies Comprehensive protection circuitry Transient overvoltage protection Undervoltage lockout Early power-loss indicator Thermal shutdown protection Foldback current limiting Programmable classification circuit Low-profile 5x 5mm 20-pin QFN Pb-Free and RoHS-compliant Voice over IP telephones and adapters Wireless access points Security cameras Point-of-sale terminals Internet appliances Network devices High power applications (Si3401) 1.Pin VSSA added on revisions CZ and higher. 2. Pin ISOSSFT added on revisions CZ and higher. Function available on revision E silicon. For Rev CZ, or to disable this feature on Revision E, tie this pin to VDD. Ordering Information:See Ordering Guide on page page 17.

化工设备课程设计计算书(板式塔)

《化工设备设计基础》 课程设计计算说明书 学生姓名：学号： 所在学院： 专业： 设计题目： 指导教师： 2011年月日 目录 一.设计任务书 (2)

二.设计参数与结构简图 (4) 三.设备的总体设计及结构设计 (5) 四.强度计算 (7) 五.设计小结 (13) 六.参考文献 (14) 一、设计任务书 1、设计题目 根据《化工原理》课程设计工艺计算内容进行填料塔（或板式塔）设计。

设计题目： 各个同学按照自己的工艺参数确定自己的设计题目：填料塔（板式塔）DNXXX设计。 例：精馏塔（DN1800）设计 2、设计任务书 2.1设备的总体设计与结构设计 （1）根据《化工原理》课程设计，确定塔设备的型式(填料塔、板式塔)； （2）根据化工工艺计算，确定塔板数目(或填料高度)； （3）根据介质的不同，拟定管口方位； （4）结构设计，确定材料。 2.2设备的机械强度设计计算 （1）确定塔体、封头的强度计算。 （2）各种开孔接管结构的设计，开孔补强的验算。 （3）设备法兰的型式及尺寸选用；管法兰的选型。 （4）裙式支座的设计验算。 （5）水压试验应力校核。 2.3完成塔设备装配图 （1）完成塔设备的装配图设计，包括主视图、局部放大图、焊缝节点图、管口方位图等。 （2）编写技术要求、技术特性表、管口表、明细表和标题栏。 3、原始资料 3.1《化工原理》课程设计塔工艺计算数据。 3.2参考资料： [1] 董大勤.化工设备机械基础[M].北京：化学工业出版社，2003. [2] 全国化工设备技术中心站.《化工设备图样技术要求》2000版[S]． [3] GB150-1998.钢制压力容器[S]． [4] 郑晓梅.化工工程制图化工制图[M]．北京：化学工业出版社，2002. [5] JB/T4710-2005.钢制塔式容器[S]． 4、文献查阅要求

工艺设备变更表格模板

附录2：重大变更审批表 第一部分：变更信息 变更依据 □紧急 □提高安全 □环境保护 □维修保养 □操作改进 □事故隐患整改

第二部分：需要的连带变更

第三部分：审查批准

附录3：微小变更审批表 装置/设备名称： ___________________________________________________________ 申请日期:___/___/___ 变更编号：_____________ 变更容描述： ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ 变更的理由描述： ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ __________________________________________________________ 申请人：________________________________________________

如何看datasheet+8页(绝对有用)

How to Read a Datasheet Prepared for the WIMS outreach program 5/6/02, D. Grover In order to use a PIC microcontroller, a flip-flop, a photodetector, or practically any electronic device, you need to consult a datasheet. This is the to. Where do you find datasheets? Nowadays you can find almost any datasheet on the internet, often in PDF (Acrobat) form. For example, the LM555 datasheet from National Semiconductor is on their website at https://www.sodocs.net/doc/118157894.html,.

LM555Timer General Description The LM555is a highly stable device for generating accurate time delays or oscillation.Additional terminals are provided for triggering or resetting if desired.In the time delay mode of operation,the time is precisely controlled by one external re-sistor and capacitor.For astable operation as an oscillator,the free running frequency and duty cycle are accurately controlled with two external resistors and one capacitor.The circuit may be triggered and reset on falling waveforms,and the output circuit can source or sink up to 200mA or drive TTL circuits. Features n Direct n Timing n Operates n Adjustable n Output n Output n Temperature n Normally n Available Applications n Precision n Pulse n Sequential DS007851-1 有时常规描述（General Description ）会给出一些其它地方没提到的特性或者用法。特性（确认电气特性所在的条件以及特殊情况。 通常叫做等效原理图，该原理不是该芯片中必须的，但是该芯片将按照里面的来运作。它能帮助解释在数据手册中未被描述的行为。能把这个电路在面包板上搭出来吗？除非您知道那些并未给出参数的晶体管的参数。 总会有一个日期。数据手册变动，尤其是预备版或者修正版，核对一下日期。

化工设计贮罐设计说明书

目录 前言 (2) 第1章设计参数的选择 1.1 设计要求与数据 1.1.1设计要求 (2) 1.1.2 设计数据 (2) 1.1.3 贮罐容积 (2) 1.2 设计温度 (3) 1.3 设计压力 (3) 1.4 主体设备和零部件材料选择 (3) 第2章设备的结构 2.1 罐体壁厚设计 (3) 2.2 封头壁厚设计 (4) 2.3 鞍座 (4) 2.4 人孔 (5) 2.5 人孔补强确定 (6) 2.6 法兰的选用 (6) 2.7 接口管 (6) 2.8 主体设备尺寸和零部件尺寸 (7) 2.9 设备总装配图 (7)

前言 卧式贮罐比立式贮罐易运输、设计合理、工艺先进、自动控制，符合GMP 标准要求，古采用卧式贮罐。 第1章设计参数的选择 1.1 设计要求与数据 1.1.1设计要求 （1）主体设备和零部件材料选择； （2）主体设备尺寸和零部件尺寸计算及选择规格； （3）设备壁厚以及封头壁厚的计算和强度校核； （4）各种接管以及零部件的设计选型； （5）设备支座的的设计选型； （6）法兰的设计选型； （7）设备开孔及开孔补强计算； （8）设计图纸要求1号图纸一张，包括设备总装配图，至少画三个重要构件的局部图；技术特性表，接管表和总图材料明细表。要求比例适当，字体规范，图纸整洁。 1.1.2 设计数据 表1-1 设计数据 序号项目数值单位备注 1 设备名称乙烯贮罐 2 公称直径2200 ㎜ 3 贮罐长度4000 ㎜ 4 最大工作压力 2. 5 MPa 5 贮存介质乙烯 6 工作地点宜宾 7 其他要求100%无损检测 1.1.3 贮罐容积 贮罐的容积=封头的容积+筒体的容积 由钢制筒体的容积、面积及质量表，可查得公称直径为2200㎜的筒体，1米高的容积为3.8013m，可得筒体的容积为：3.801×4=15.2043m；由JB/T4337

_-_-Borneol_DataSheet_MedChemExpress

Inhibitors, Agonists, Screening Libraries https://www.sodocs.net/doc/118157894.html, Data Sheet BIOLOGICAL ACTIVITY: (–)–Borneol has a highly efficacious positive modulating action at GABA receptor with an EC 50 of 237 μM. IC50 & Target: EC50: 237 μM (GABA receptor)[1] In Vitro: (–)–Borneol is an enantiomer of (+)–Borneol. (+)–Borneol is a natural bicyclic monoterpene used for analgesia and anesthesia in traditional Chinese medicine; enhances GABA receptor activity with an EC 50 of 248 μM. At high concentrations (>1.5 mM), (–)–Borneol directly activates GABAA receptors producing 84% of the maximal GABA response indicative of a weak partial agonist action. (–)–Borneol produces dose–dependent positive modulation of the Cl – conductance generated by extremely low dose GABA at α1β2γ2L GABAA receptors [1].References: [1]. IGranger RE, et al. (+)– And (–)–borneol: efficacious positive modulators of GABA action at human recombinantalpha1beta2gamma2L GABA(A) receptors.Biochem Pharmacol. 2005 Apr 1;69(7):1101–11. Product Name: (–)–Borneol Cat. No.: HY-N1368B CAS No.: 464-45-9Molecular Formula: C10H18O Molecular Weight: 154.25Target: GABA Receptor Pathway: Membrane Transporter/Ion Channel; Neuronal Signaling Solubility: DMSO Caution: Product has not been fully validated for medical applications. For research use only. Tel: 609-228-6898 Fax: 609-228-5909 E-mail: tech@https://www.sodocs.net/doc/118157894.html, Address: 1 Deer Park Dr, Suite Q, Monmouth Junction, NJ 08852, USA https://www.sodocs.net/doc/118157894.html,

Technical Datasheet

Conveyor belt fabrics A)Raw Materials: Polyester(E) Polyamide(P) Viscose(Z) Cotton(B) Kuralon(K) Aramid(D) Polypropylene(S) Fabric Compositions: EP, EE, EpP, E(P)P PP, PE, PZ Solid Woven: 2500 – 11000 g/m2 74 oz/y2to 325 oz/y2 Straight Warp: 1000 – 4700 g/m2 30 to 139 oz/y2 D) Belt Strength Classes: EP 63 – EP 800 P 80 – P 700 Solid woven up to 2500 Straight Warp up to 2500 E) Fabric Tensile Strength: Technical Fabrics: Liner fabrics for the conveyor belt and tire industry (multifil/monofil – multifil/multifil), leno weave for trans- verse armment, breaker fabrics with plain and leno weave, special fabric constructions for bearing, sieve plates and mats, etc. Cable Cord for Traverse Armement: Cable Cord out of Polyester, Polyamide ?1880 x 3 x 4 ?1880 x 3 x 5 Technical Specifications MEP-OLBO GMBH Edelzeller Stra?e 44 36043 Fulda Germany

涂料生产工艺及设备完整版

涂料生产工艺及设备 HEN system office room 【HEN16H-HENS2AHENS8Q8-HENH1688】

Ⅰ涂料生产工艺 第一章涂料制造流程 一、涂料的基本组成 树脂颜料溶剂助剂 二、制造流程： 预分散——研磨——混合调整——调色——检测——过滤罐装三、制造流程图 备注：QC1是原材料；QC2是工艺检控；QC3是成品检验

Ⅱ涂料生产设备 色漆生产流程如下： 预分散——研磨——调色配制——过滤包装 现依色漆生产工艺介绍其生产设备。 第一章预分散设备 预分散可使颜料与部分漆料混合，变成颜料色浆半成品。是色浆生产的第一道工序。目的：①使颜料混合均匀；②使颜料得到部分湿润；③初步打碎大的颜料聚集体。属以混合为主，起部分分散作用，为下一步研磨工序做准备。预分散效果的好坏，直接影响到研磨分散的质量和效率。用到设备主要是高速分散机。 高速分散机除用来做分散设备外，同时可作色漆生产设备，比如生产色漆的颜料属于易分散颜料，或者色漆细度要求不高，这时，可直接用高速分散机分散生产色漆。 其结构见图2-1。(为落地式高速分散机)由机身、传动装置、主轴和叶轮组成。 图2-1落地式高速分散机外形图 机身装液压升降和回转装置，液压升降由齿轮油泵提供压力油使机头上升，下降时靠自重，下降速度由行程节流阀控制。回转装置可使机头回转360°，转动后有

手柄锁紧定位。传动装置由电机通过V型带传动，电机可三速或双速，或带式无级调速、变频调速等。转速由几百转／分到上万转／分，功率几十上百千瓦不等。 高速分散机的关键部件是锯齿圆盘式叶轮，如图2-2。 图2-2 高速分散机叶轮示意图 叶轮直径与搅拌槽选用大小有直接关系，经验数据表明，搅拌槽直径由φ=—(D：叶轮直径)，分散效果最理想。 叶轮的高速旋转使漆浆呈现滚动的环流，并产生一个很大的旋涡。在叶轮边缘—5cm处，形成一个湍流区，在这个区域，颜料粒子受到较强的剪切和冲击作用，使其很快分散到漆浆中。 叶轮的转速以叶轮圆周速度达到大约20m／s时，便可获得满意的分散效果。过高，会造成漆浆飞溅，增加功率消耗。Vmax=20--30m／s。 分散机的安装方式分：落地式，适合于拉缸作业，另一种安装在架台上，可以一个分散机供几个固定罐使用。 现阶段，高速分散机出现了不少改型产品，有其各自特点，使得分散机的应用范围更广。如：双轴双叶轮高速分散机，见图2-3；双速高速分散机(双轴单叶轮分散机、双轴双速搅拌机)等。 图2-3 双轴双叶轮高速分散机 第二章研磨分散设备 研磨设备是色漆生产的主要设备，基本型式分两类，一类带研磨介质，如砂磨机、球磨机，另一类不带研磨介质，依靠抹研力进行分散，像三辊机、单辊机等。 带研磨介质的设备依靠研磨介质(如玻璃珠、钢珠、卵石等)在冲击和相互滚动或滑动时产生的冲击力和剪切力进行研磨分散。通常用于流动性好的中、低粘度漆浆的生产，产量大，分散效率高。不带研磨介质的研磨分散设备，可用于粘度很高，甚至成膏状物料的生产。现分别介绍立式砂磨机、三辊机。 第一节立式砂磨机 其外型结构如图2-4，由机身、主电机、传动部件、筒体、分散器、送料系统和电器操纵系统组成。 图2—4 立式砂磨机结构简图 1—放料放砂口；2—冷却水进口；3—进料管；4—无级变速器；5—送料泵；6—调速手轮； 7—操纵按钮板；8—分散器；9—离心离合器；10—轴承座；11—筛网；12—简体

常用的十大电子元器件Datasheet

常用的十大电子元器件Datasheet 元器件数据表（datasheet）是电子工程师项目开发时经常使用到的手册。Datasheet（数据手册）包含了电子芯片的各项参数，电性参数，物理参数，甚至制造材料，使用建议等，一般由厂家编写，内容形式一般为说明文字，各种特性曲线，图表，数据表等。下面介绍一下常用的十大电子元件： 1、DS18B20温度传感器273W百度收录总数 常用指数：★★★★★ DS18B20是Dallas公司生产的数字温度传感器，具有体积小、适用电压宽、经济灵活的特点。它内部使用了onboard专利技术，全部 传感元件及转换电路集成在一个形如三极管的集成电路内。DS18B20有电源线、地线及数据线3根引脚线，工作电压范围为3～5.5 V ，支持单总线接口。 免费下载：DS18B20 2、TL431可控精密稳压源244W 常用指数：★★★★ TL431是由德州仪器生产，所谓TL431就是一个有良好的热稳定性能的三端可调分流基准源。它的输出电压用两个电阻就可以任意地 设置到从Vref(2.5V)到36V范围内的任何值(如图1)。该器件的典型动态阻抗为0.2Ω，在很多应用中可以用它代替齐纳二极管，例如， 数字电压表，运放电路、可调压电源，开关电源等等。 免费下载：TL431

LM358双运算放大器238W 常用指数：★★★★ LM358双运算放大器，适合于电源电压范围很宽的单电源使用，也适用于双电源工作模式，在推荐的工作条件下，电源电流与电源电压无关。它的使用范围包括传感放大器、直流增益模块和其他所有可用单电源供电的使用运算放大器的场合。 免费下载：LM358 4、LM324四路运算放大器236W 常用指数：★★★★ LM324系列是低成本的四路运算放大器，具有真正的差分输入。在单电源应用中，它们与标准运算放大器类型相比具有几个明显的优 势。该四路放大器可以工作于低至3.0 V或高达32 V的电源电压，静态电流是MC1741的五分之一左右（每个放大器）。共模输入范围 包括负电源，因此在众多应用中无需外部偏置元器件。输出电压范围也包括负电源电压。免费下载：LM324 5、DAC0832数模转换芯片157W 常用指数：★★★ DAC0832是8分辨率的D/A转换集成芯片。与微处理器完全兼容。这个DA芯片以其价格低廉、接口简单、转换控制容易等优点，在单 片机应用系统中得到广泛的应用。D/A转换器由8位输入锁存器、8位DAC寄存器、8位D/A转换电路及转换控制电路构成。 免费下载：DAC0832

datasheet

F1C100 Processer Datasheet V1.0 2011-3-31 本F1C100 datasheet属于珠海全志科技有限公司之商业机密；除非珠海全志科技有限公司授权，任何机构和个人对本F1C100之全部或部分内容不得有复制、复印或向第三方传播之行为；珠海全志科技有限公司保留一切法律之权利.

1 Revision History 本F1C100 datasheet属于珠海全志科技有限公司之商业机密；除非珠海全志科技有限公司授权，任何机构和个人对本F1C100之全部或部分内容不得有复制、复印或向第三方传播之行为；珠海全志科技有限公司保留一切法律之权利.

Table of Contents 1REVISION HISTORY .................................................................................................................. I I 2DESCRIPTION ......................................................................................................................... - 5 -3FEATURE .................................................................................................................................. - 5 -4FUNCTIONAL BLOCK DIAGRAM ...................................................................................... - 7 -5PIN ASSIGNMENT .................................................................................................................. - 8 -6PIN DESCRIPTION ................................................................................................................. - 8 - 6.1SDR I NTERFACE P IN (8) 6.2NAND F LASH I NTERFACE P IN (10) 6.3LCD I NTERFACE P IN (10) 6.4USB I NTERFACE P IN (11) 6.5T OUCH P ANEL I NTERFACE P IN (11) 6.6A UDIO C ODEC I NTERFACE P IN (11) 6.7TV-O UT I NTERFACE P IN (12) 6.8C LOCK P IN (12) 6.9G ENERAL P URPOSE IO P IN (12) 6.10M ISCELLANEOUS S IGNAL P IN (12) 6.11P OWER AND G ROUND P IN (13) 7POWER DOMAIN .................................................................................................................. - 13 -8MODULE DESCRIPTION .................................................................................................... - 13 - 8.1C LOCK C ONTROL M ODULE (13) 8.1.1CCM Overview............................................................................................................. - 13 - 8.1.2CCM Diagram .............................................................................................................. - 15 -8.2I NTERRUPT C ONTROLLER (16) 8.2.1Interrupt Overview ....................................................................................................... - 16 - 8.2.2Interrupt Diagram ......................................................................................................... - 17 -8.3T IMER (17) 8.3.1Timer Overview ............................................................................................................ - 17 - 8.3.2Timer Diagram .............................................................................................................. - 18 -8.4P ULSE W IDTH M ODULATOR (18) 8.4.1PWM Overview ............................................................................................................ - 18 -8.5DMA . (19) 8.5.1DMA Overview ............................................................................................................ - 19 -8.6SDRAM I NTERFACE.. (19) 8.6.1DRAM Controller Description ..................................................................................... - 19 -8.7NAND F LASH I NTERFACE .. (20) 8.8SD C ARD I NTERFACE (21) 8.8.1SD Card Overview ........................................................................................................ - 21 -8.9USB I NTERFACE .. (21) 8.9.1USB Overview .............................................................................................................. - 21 -本F1C100 datasheet属于珠海全志科技有限公司之商业机密；除非珠海全志科技有限公司授权，任何机构和个人对本F1C100之全部或部分内容不得有复制、复印或向第三方传播之行为；珠海全志科技有限公司保留一切法律之权利.

化工流体管路设计

流体输送管路设计

目录 1.任务书 2.设计过程 2.1流程图 2.2管道设计 2.2.1主管道规格确定 2.2.2管道特性方程估算 2.3泵的设计 2.3.1项目基础数据及相关信息 2.3.2泵型号确定及其基础特性参数 2.3.3泵工作点确定及其性能参数的校正2.3.4泵的安装高度估算 2.4设计结果一览图表 3．条件变化对输送系统的影响分析4．操作过程及注意事项 5．设计评述 6．参考文献 7.符号说明

一、任务书 某工厂需要将一定量溶剂从贮槽送往高位槽,两槽液面稳定,其间的垂直距离为10m, 溶剂温度20℃,溶剂贮槽液面与地面的距离为3m,试解决下列问题：⑴选择输送管子,并画出示意图；⑵选择合适类型的泵；⑶求泵的轴功率和电机功率；⑷确定泵的安装位置；⑸确定泵的工作点、损耗在阀门上的轴功率； ⑹现若流量需增加10%,可采取什么措施? 分析管路设计中可行的节能措施。 注：学号单号同学选用溶剂为乙醇，双号同学选用溶剂为甲醇，输送量为（50+学号最后两位）吨/小时。 要求：查阅相关工程设计手册或其它文献，写出设计报告，对工艺参数的选用附上相关出处。 二、设计过程 1.流程图

2.管道设计 2.1物理参数及操作环境 条件在20℃，即303.15K 下进行，储罐A 与大气相通，其液面上方大气压假定为1atm ，离心泵根据管路计算选择。输送量为61000kg/h 。 常压、303.15K 下，乙醇的物性数据为：密度ρ=789kg/m 3,黏度μ=1.15*10-3Pa ·s 。 2.2管径、流速、雷诺数的计算与流型的判断 工程设计中．易燃易爆液体管道直径的大小．与安全流速值的大小有直接的关系。根据化工设计手册[1] 乙醇的安全流速u ≤5m/s,结合乙醇在管路输送的经济流速[2]，和泵吸入管的推荐流速0.5≤u ≤2.0m/s 和排出管的推荐流速2.4≤u ≤3.0m/s[3]。 假定液体在吸入管道内的流速0u =2.2s m ，在泵排出管 内的流速u 1=3.0m/s,已知流量s / 0.0215/ 77.33 3m h m V a ==，由流量计算式u d V 2 2?? ? ??=π 得吸入管径为：