06无非热工过程实验指导书

06无非热工过程实验指导书 实验报告书 姓名:余辉华 班级:06无非(2)班 学号:200630451216 practices. The development of various undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard and exemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and resolute working style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to complete work assigned by the superior party. Third, focus on improving service, the ability 目 录 实验要求 ........................................ 2 实验一 球体法粒状材料的导热系数的测定 ........... 3 实验二 套管换热器液-液换热实验 .................. 8 实验三 燃料发热量的测定(综合) ................ 11 附录1 铜,康铜热电偶分度表 ..................... 17 附录2 精密数字温度温差仪使用方法................ 18 lete work assigned by the superior party. Third, focus on improving service, the abilityworking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to comp soluteand exemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and reious undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard practices. The development of var1 实验要求 1(实验前应预习与实验有关的内容和实验指导书，了解实验目的、实验原理和实验要求，做到心中有数。 2(在实验室要首先熟悉实验装置的构造特点、性能和使用方法，使用贵重仪器时需得到指导教师的许可，方可动用。 (实验时应严肃认真、一丝不苟，细致地观察实验中的各种现象，并作好3 记录，通过实验，训练基本操作技能和培养科学的工作作风。 4(实验结束时，学生先自行检查全部实验记录，再经指导教师审阅后，方可结束实验。 5(学生实验时，如出现实验仪器损坏情况，应及时向指导教师报告。 6(按规定认真填写实验报告，并按期交出。 te work assigned by the superior party. Third, focus on improving service, the abilityrking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to complete woexemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and resolu s undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard andpractices. The development of variou2 实验一 球体法粒状材料的导热系数的测定 一、实验目的 1. 巩固稳定导热的基本理论，学习球体法测定物质的导热系数的实验方法; 2. 实验测定被测材料的导热系数λ; 3. 绘制出材料导热系数λ与温度t的关系曲线。 二、实验原理 加热圆球(见图1)由两个壁厚1.2毫米的大小同心圆球(1)组成。小球内装有电加热器(2)用来产生热量。大球内壁与小球外壁各设有三对铜-康铜热电偶(4)。当温度达到稳定状态后，电加热器产生的热量全部通过中间的测试材料(3)传到外 球，再由外球传给空 气。 1.大小同心球; 2.电加热器; 3.颗粒状试材; 4.铜康铜热电偶; 5.专用稳压电源; 6.专用测试仪; 7.底盘; 8.UJ36a电位差计 图1 加热圆球示意图 测取小球的温度t，t，t, 取其平均温度:T=(t+ t+ t)/3; 1231123 测取大球的温度t，t, t，取其平均温度:T=(t+ t+ t)/3; 4562456 lete work assigned by the superior party. Third, focus on improving service, the abilityworking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to comp soluteand exemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and reious undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard practices. The development of var3 根据圆球导热公式:λ=[UI(1/ D-1/D)]/[2π(T+ T)]-----------(1); 1212 式中: U——加热电压; I——加热电流 ; D——小球直径 ; D——大球直径 ; 12 三、实验装置及主要技术指标 实验装置YQF-1型导热系数测定仪的面板图见图2 专用电源的面板图见图3 图2 YQF-1型导热系数测定仪的面板图 图3 专用电源的面板图 1(电源开关;2(电源指示灯;3( 3.5位数1(电源开关; 2(电源指示灯;3(电压表;显毫伏表;4(毫伏表调零电位器;5(补偿电4(电流表;5(过载指示灯;6(电源输出端;压调节电位器;6(补偿按键;7(热电偶测量7(电源输出粗调; 8(电源输出细调。电压输出端;8(热电偶输入选择开关。 1(加热圆球 1.1测量材料:颗粒状材料，例如黄沙，珍珠岩等 1.2测量温度范围:50?,200? 1.3加热电压:0,60V 加热电流:0,1A(因不同的材料而不同) 1.4圆球尺寸:小球直径D=80mm 大球直径D=160mm 12 1.5稳定时间:约4,5小时 te work assigned by the superior party. Third, focus on improving service, the abilityrking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to complete woexemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and resolu s undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard andpractices. The development of variou4 2.导热系数测定仪 2.1数显毫伏表:3.5位显示，量程0,20mV，测量精度:0.1%?2个字 2.2温度补偿范围:-10?,40?，补偿精度?0.5? 3.专用电源 3.1输出电压:0,80V 3.2输出电流:0,1A 3.3连续工作时间:>8小时 四、实验方法和步骤 使用前，先在加热圆球的顶部用漏斗装入测试材料，如果已加好试材，则可进行实验。 1.按图3所示进行仪器的连接。稳压电源的输出通过电流表专用插头接到加热圆球底盘上的插座。电源输出“+”端串接电流表。电流表“-”与电源输出“-”端并接电压表。 )专用插座，另一端插到导热系2.将15芯信号线的一端插入加热圆球底座(7 数测定仪后面板上的15芯插座上。 3.将稳压电源的输出调到最小位置，即粗调和细调均逆时针打到底。开启电源开关，指示灯亮。调节粗调和细调开关，改变输出电压，根据电压表和电流表的指示，调节加热功率至所需的电流和电压值。 4.打开导热系数测定仪的电源开关。先进行数显毫伏表的调零。将面板右下方的输出端短接，用小一字螺丝刀调节右上角的调零电位器，使毫伏表显示为零。若已为零则无须调节。去掉短接线就可进行测量。 5.若想仪器内部的温度补偿是否正常，只须按下“补偿”键，则数显毫负表显示的值即位补偿电压。对照环境温度，通过查看附录1即可知道补偿电压是否准确。若不准确，可用小一字螺丝刀微调“补偿”按键上方的补偿电位器至准确的补偿值即可。再按“补偿”按键使它弹起即回到测量状态。 6.观察加热圆球的温度变化情况。当数显毫伏表或电位差计(UJ36a型)的读 lete work assigned by the superior party. Third, focus on improving service, the abilityworking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to comp soluteand exemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and reious undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard practices. The development of var5 数不再变化，则表示温度已达到稳定。这时用精密电压表和电流表测得U和I的值，即可计算得到加热功率。转动导热系数测定仪上的输入选择旋钮(8)。这样就能选择6个热电偶进行分别测量。 7(输入选择旋钮测得的mA值加上补偿mA值即为热电偶测量值，对照附录1“铜——康铜热电偶分度表”即可查得对应的测量温度。 五、实验数据记录和处理 1、实验完后记录实验数据记录，并整理填写下表: 小球温度 大球温度 加热加热导热系数 t t t t t t 123456序号 电流电压W/m? T T 12 A V mV mV mV mV mV mV ? ? ? ? ? ? ? ? 导热系数λ根据式(1)计算 2、绘制材料导热系数λ与温度t的关系曲线。 te work assigned by the superior party. Third, focus on improving service, the abilityrking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to complete woexemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and resolu s undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard andpractices. The development of variou6 六、思考题 1、为什么大球内壁与小球外壁要设三对热电偶, 2、实验室内的空气流通对实验有何影响, lete work assigned by the superior party. Third, focus on improving service, the abilityworking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to comp soluteand exemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and reious undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard practices. The development of var7 实验二 套管换热器液-液换热实验 一、 实验目的 1( 通过实验，测定在套管换热器中进行的液液热交换的传热总系数，流体在圆 管内作强制湍流时的传热系数。 2( 对在强制对流下进行液液热交换过程，验证求算传热膜系数的关联式。通过 实验取得新物系的传热系数的数据及其计算式。 3( 通过本实验，了解传热过程的实验方法，在实验技能上受到一定的训练，并 加深对传热过程基本原理的理解。 二、 实验设备 本实验装置主要由套管热交换器(Ф12×1.5mm的黄铜管为内管，Ф20×2.0mm的有机玻璃管为套管所构成)、恒温循环水槽(控制恒温)、高位稳压水槽(保持水压恒定)以及一系列测量和控制仪表所组成，装置流程如图所示。 热流体冷流体 温度器两端测试点的图 套管热交换 三、 实验的方法与步骤 1、向恒温循环水槽灌入蒸馏水或软水，直至溢流管有水溢出为止。 te work assigned by the superior party. Third, focus on improving service, the abilityrking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to complete woexemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and resolu s undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard andpractices. The development of variou8 2、开启并调节通往高位稳压水槽的自来水阀门，使槽内充满水，并溢流管有水流出。 3、将冰碎成细粒，放入冷阱中并掺入少许蒸馏水，使之浊状。将热电偶冷接点插入冰水中，盖严盖子 4、循环水槽的温度自控装置的温度定为55?。启动恒温水槽的电热器。等恒温水槽的水达到预定温度后即可开始实验。 5、开启冷水截止球阀，测定冷水流量，实验过程中保持恒定。 6、启动循环水泵，开启并调节热水调节阀。热水流量在60,250L/h 范围内选取若干流量值(一般要求不少于4,5组测试数据)，进行实验测定。 7、每调节一次热水流量，待流量和温度都恒定后，再通过琴键开关，依次测定个点温度。 四、 实验结果整理 1、记录实验设备基本参数。 实验设备型式和装置方式:水平装置套管式热交换器 内管基本参数: 材料:黄铜 测试段长度L= 外径d= 壁厚δ= 套管基本参数: 材料:有机玻璃 外径d`= 壁厚δ= mm 2流体流通的横截面积:内管横截面积:S= mm 2环隙横截面积:S`= mm 2热交换面积: 内管内壁表面积:Aw= mm 2内管外壁表面积:Aw`= mm 2平均热交换面积;A = mm lete work assigned by the superior party. Third, focus on improving service, the abilityworking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to comp soluteand exemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and reious undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard practices. The development of var9 2(实验数据记录: 温度 冷水 热水 实验 流量 流量 测试截面I 测试截面? , 序号 VV T T t T T t 1W112W22 000000Kg/s Kg/s C C C C C C 3.实验数据整理: (1)求取总传热系数K 管内 传热 总传热系流体间温度差 数 流速 速率 实验 序号 u ?T ?T ?T Q K 12m -1-2-1m.s K K K W W.mK 1 2 3 平均 (2)由圆管内壁的对流换热表面传热系数h 管内 传热 管内表面 流体与壁面温差 流速 速率 传热系数 实验 序号 U T-T T-T ?T'm Q h 122W2 -1-2-1-2-1M?S K K K W?mk W?mk 1 2 3 平均 te work assigned by the superior party. Third, focus on improving service, the abilityrking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to complete woexemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and resolu s undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard andpractices. The development of variou10 实验三 燃料发热量的测定(综合) 一.实验目的 单位燃料完全燃烧后所放出的热量称为热值，它是衡量燃料质量优劣的重要指标之一。燃料热值可用氧弹量热计直接测定。 1(了解氧弹量热计的构造和使用，掌握固体燃料热值测定原理和方法。 2(测定量热计的热容量K值。 3(测定燃料的热值。 二.实验原理 将已知量的燃料置于密封容器(氧弹)中，通入氧气，点火使之完全燃烧，燃料所放出的热量传给周围的水，根据水温升高度数计算出燃料热值。 测定时，除燃料外，点火丝燃烧，HSO 和HNO的生成和溶解也放出热量;量热243 计本身(包括氧弹.温度计.搅拌器和外壳等)也吸收热量;此外量热计还向周围散失部分热量，这些计算时都应考虑加以修正。 量热计系统在实验在条件下，温度升高1 ?所需要的热量称为量热计的热容量。测定之前，先使已知发热量的苯甲酸(量热计标准物质、热值为6329卡/克)在氧弹内燃烧，标定量热计的热容量K。设标定时总热效应为Q，测得温度升高为Δt，测得热容量为K = Q/Δt 量热计的热容量如果已由实验室测定，同学可不必再测。 测定时，再将已知量的被测燃料置于氧弹中燃烧，如测得温度高为Δt，则燃x烧总效应为: Q = K×Δt xx 再经进一步修正计算出燃料的热值(具体计算方法见后面计算部分)。 lete work assigned by the superior party. Third, focus on improving service, the abilityworking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to comp soluteand exemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and reious undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard practices. The development of var11 三.实验装置 量热计的构造(见图1),氧弹的构造(见图2)。 进出气孔 负电正极电极电阻坩丝锅 图2 氧弹的构造图图1 量热计的构造图 1(搅动棒; 2(外筒; 3(内筒; 4(垫脚; 5(氧弹; 6(传感器; 7(点火按键; 8(电源开关; 9(搅拌开关; 10(点火输出负极; 11(点火输出正极; 12(搅拌指示灯; 13(电源指示灯; 14(点火指示灯。 四.实验方法和步骤 1(煤样准备 为保证完全燃烧测定热值的煤样,应粉碎至粒度小于0.2毫米,每次测定称煤样1.0,1.2克准备至0.0002克. 2.点火丝 点火丝有镍丝和铁丝,量出点火丝长度,计算点火丝重量(单位长度,点火丝重量实验室已测好). 3.量热计用水 量热计外筒中需注满与室温相差不超过0.5?的水(一般已注好). 量热计内筒用蒸馏水,为减少散热误差,内筒水温应比外筒水温低0.7?.内筒注入的水量,以保证水面没至氧弹进气阀的2/3高度为宜,约3000克,需精确至0.5克. te work assigned by the superior party. Third, focus on improving service, the abilityrking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to complete woexemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and resolu s undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard andpractices. The development of variou12 4.装样料 把氧弹的弹头放在弹头架上,将样品放入坩埚内,把坩埚放在燃烧架上.测量燃烧丝长度,然后将燃烧丝两端分别固定在弹头中的两根电极上,中部贴紧样品.(燃烧丝与坩埚壁不能相碰)在弹筒中注入10毫升的水,把弹头放入杯中(样品为苯甲酸，则不用注水),用手拧紧。 5.充氧 使用高压氧气瓶充氧必须严格遵守操作规程.开始先充入少量氧气(约0.5MPa) ,然后开启出口,借以赶出弹中空气.再充入约1,2MPa的氧气. 6.装置安装 将氧弹小心放入量热计内筒，接好点火电线，盖上量热计盖, 插入测温传感器探头，调好精密数字温度温差仪，打开搅拌开关和电源开关，实验开始读数, 7. 实验读数 实验读数分为三期:初期,主期和末期,三个期互相衔接. 初期:由读数开始至点火为初期,用以记录和观察周围环境与量热计在实验开始温度下热交换的关系,以求得散热校正值.初期内半分钟记录温度一次,直至得到11个 第11个读数作为燃烧前水的温度读数为止.t. h 主期:从第11个读数开始,在此阶段燃烧试样所放出的热量传给水和量热计,并使量热计设备的各部分温度达到平衡. 读取初期的第11个读数之后,立即接通点火开关,点火指示灯亮,随之在1,2秒内熄灭表示点火完毕,继续观察温度计读数,在主期内仍半分钟读取一次读数,并逐一记录下来. 点火后最初几次温度读数,因上升很快不易读准,可只读到0.01?,但不少漏读,待温度上升减缓以后,而恢复读到0.001?,一般在第一个半分钟内温度变化不大,然后就开始迅速上升,达到最高值后,就开始降温,开始下降的第一个温度读数为止为主期,第一个下降的温度读数作为水的最终温度t。 K lete work assigned by the superior party. Third, focus on improving service, the abilityworking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to comp soluteand exemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and reious undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard practices. The development of var13 温度在迅速升高后,也可能不再降低而继续上升,但上升愈来愈慢,这发生在室温较量热计温度为高的情况下. 这种情况下,仍需每半分钟读一次温度读数,当这一温度变化每分钟不超过0.003?时,即认为主期结束,主持最后一个温度读数为水的最终温度t. K 末期:这一阶段的目的与初期相同,是为了观察实验终了温度下热交换的关系.主期的最后一个温度读数t作为末期的第一个读数,此后仍每半分钟读取一次温度读数,K 至第11次读数,末期结束, 读数也结束. 8(装置拆卸 实验完毕,关闭搅拌开关和电源开关，拔出测温传感器探头，打开量热计盖, 取出氧弹擦干。 小心打开氧弹排气阀(切不可先拧开氧弹盖),放出废气,响声停止后再拧开盖,检查弹内及弹盖如有薄层烟渣或未燃尽的细粒,则实验失败,必须重做. 将内筒的水倒掉，擦干量热计所有设备，将弹头置于弹头架上。 五(实验数据记录和计算 1、原始数据记录: 1)试样重量G 2)点火丝燃烧的净重量b 3)温度读数:初期、主期、末期; 2、计算量热计的热容量K值: K =( QG +ɡ×b)/(t-t+Δt) b×Kh 式中:Q——苯甲酸(量热计标准物质)的热值 为6329 KJ/Kg b 3、计算燃料燃烧的氧弹热值: Q=[K(t-t+Δt)- ɡ×b]/G KJ/Kg x Kh 式中:Q——分析基试样的氧弹热值， KJ/Kg x Δt——热交换校正值，Δt =(V+V)×(m+1)/2+V×r 11 te work assigned by the superior party. Third, focus on improving service, the abilityrking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to complete woexemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and resolu s undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard andpractices. The development of variou14 V——初期内每半分钟间隔内温度变化的平均值，即第1个读数减去第11个读数被10除。 V——末期内每半分钟间隔内温度变化的平均值，即末期第一个读数被减去第1 11个读数10 除。 m——主期快速升温后，每隔半分钟大于0.3 ?的半分钟温度间隔数. r——主期温度变化小于0.3?的半分钟温度间隔数。 k——量热计的热容量， KJ /?。 ɡ——点火丝燃烧热， KJ/Kg b——点火丝实际燃烧掉的净重量， Kg G——试样重量， Kg 煤的高位发热值按下式计算: Q= Q-(94.1×S + a×Q) g x x 式中:Q——分析基样品高位热值， KJ/Kg g Q——分析基样品氧弹热值， KJ/Kg x S——由洗弹液测得的燃料含硫量，%; a ——硝酸生成热校正系数， 贫煤、无烟煤取0.00410, 其他煤取0.00627。 4、实验结果分析讨论 lete work assigned by the superior party. Third, focus on improving service, the abilityworking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to comp soluteand exemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and reious undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard practices. The development of var15 六、思考题 1、实验完毕装置拆卸，氧弹必须排先放出废气后拧开氧弹盖,为什么, 2、温度读数应精确到多少,点火后最初几次温度读数可只读到多少，为什么, 3、实验读数分几期，主期结束的标志是什么, te work assigned by the superior party. Third, focus on improving service, the abilityrking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to complete woexemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and resolu s undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard andpractices. The development of variou16 附录1 铜,康铜热电偶分度表 0 1 2 3 4 5 6 7 8 9 10 温度温度。。热电动势(mV) CC-40 -1.475 -1.510 -1.544 -1.579 -1.614 -1.648 -1.682 -1.717 -1.751 -1.785 -1.819 -40 -30 -1.121 -1.157 -1.192 -1.228 -1.263 -1.299 -1.334 -1.370 -1.405 -1.440 -1.475 -30 -20 -0.757 -0.794 -0.830 -0.867 -0.903 -0.940 -0.976 -1.013 -1.049 -1.085 -1.121 -20 -10 -0.383 -0.421 -0.458 -0.496 -0.534 -0.571 -0.608 -0.646 -0.683 -0.723 -0.757 -10 0 0.000 -0.039 -0.077 -0.116 -0.154 -0.193 -0.231 -0.269 -0.307 -0.345 -0.383 0 0 0.000 0.039 0.078 0.117 0.156 0.195 0.234 0.273 0.312 0.351 0.391 0 10 0.391 0.430 0.470 0.510 0.549 0.589 0.629 0.669 0.709 0.749 0.789 10 20 0.789 0.830 0.870 0.911 0.951 0.992 1.032 1.073 1.114 1.155 1.196 20 30 1.196 1.237 1.279 1.320 1.361 1.403 1.444 1.486 1.528 1.569 1.611 30 40 1.611 1.653 1.695 1.738 1.780 1.822 1.865 1.907 1.950 1.992 2.035 40 50 2.035 2.078 2.121 2.164 2.207 2.250 2.294 2.337 2.380 2.424 2.467 50 60 2.467 2.511 2.555 2.599 2.643 2.687 2.731 2.775 2.819 2.864 2.908 60 70 2.908 2.953 2.997 3.042 3.087 3.131 3.176 3.221 3.266 3.312 3.357 70 80 3.357 3.402 3.447 3.493 3.538 3.584 3.630 3.676 3.721 3.767 3.813 80 90 3.813 3.859 3.906 3.952 3.998 4.044 4.091 4.137 4.184 4.231 4.277 90 100 4.277 4.324 4.371 4.418 4.465 4.512 4.559 4.607 4.654 4.701 4.749 100 110 4.749 4.796 4.844 4.891 4.939 4.987 5.035 5.083 5.131 5.179 5.227 110 120 5.227 5.275 5.324 5.372 5.420 5.469 5.517 5.556 5.615 5.663 5.712 120 130 5.712 5.761 5.810 5.859 5.908 5.957 6.007 6.056 6.105 5.155 6.204 130 140 6.204 6.254 6.303 6.353 6.403 6.452 6.502 6.552 6.602 6.652 6.702 140 150 6.702 6.753 6.803 6.853 6.903 6.954 7.004 7.055 7.106 7.156 7.207 150 160 7.207 7.258 7.309 7.360 7.411 7.452 7.513 7.564 7.615 7.666 7.718 160 170 7.718 7.769 7.821 7.872 7.924 7.975 8.027 8.079 8.131 8.183 8.235 170 180 8.235 8.287 8.339 8.391 8.443 8.495 8.548 8.600 8.652 8.705 8.757 180 190 8.757 8.810 8.863 8.915 8.968 9.021 9.074 9.127 9.180 9.233 9.286 190 DEG DEG 0 1 2 3 4 5 6 7 8 9 10 C C lete work assigned by the superior party. Third, focus on improving service, the abilityworking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to comp soluteand exemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and reious undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard practices. The development of var17 附录2 精密数字温度温差仪使用方法 一( 面板示意图: 2 3 4 6 5 。。温差() 温度() 定时 SWC-IICC D ? 测量 ?保持 精密数字温度温差仪 ?镇定 镇定 镇定 测量/保持 通 断 1 8 9 10 11 12 7 1(电源开关。 2(温度显示窗口——显示温度值。 3(温度显示窗口——显示所测的温度值。 4(定时窗口——显示设定的读数时间间隔。 5. 测量指示灯——灯亮表示系统处于测量工作状态。 6. 保持指示灯——灯亮表示系统处于读数保持状态。 7. 锁定指示灯——灯亮表明系统处于基温锁定状态。 8. 锁定键——按下此键，基温自动选择和采零键都不起作用，直至重新开机。 9. 测量、保持功能转换键——此键为开关式按键，在测量功能和保持之间转换。 10(采零键——用以消除仪表当时的温度值，使温差显示窗口显示“0.000”。 11、12(数字调节键—— 键和 键分别调节数字的大小。 二(操作步骤: 1(将传感器探头插入后盖板上的传感器接口(槽口对准)。 te work assigned by the superior party. Third, focus on improving service, the abilityrking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to complete woexemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and resolu s undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard andpractices. The development of variou18 为了安全起见，请在接通电源前进行上述操作～ 2(将,22V电源接入后盖板上的电源插座。 3(将传感器插入被测物中(插入深度应大于50mm)。 4(按下电源开关，此时显示屏显示仪表初始状态(实时温度)。 5(当温度显示值稳定后，按一下采零键，温度显示窗口显示“0.000”。稍后的变化值为采零后温差的相对变化量。 6(在一个实验过程中，仪器采零后，当介质温度变化过大时，仪表会自动更换适当的基温。这样，温差的显示值将不能正确反映温度的变化量，故在实验时，按下采零键后，应再按一下锁定键。这样，仪器将不会改变基温，采零键也不起作用，直至重新开机。 7(需要记录读数时，可按一下测量/保持键，使仪器处于保持状态(此时“保持”指示灯亮)。读数完毕，再按一下测量/保持键，即可转换到“测量”状态，进行跟踪测量。 8(定时读数 (1)按下 或 键，设定所需的报时间隔(应大于5秒钟，定时读 数才会起作用)。 (2)设定完后，定时显示将进行倒计时，当一个计数周期完毕时，蜂鸣器鸣叫且读数保持约5秒钟，“保持”指示灯亮，此时可观察和记录数据。 (3)若不想报警，只需将定时读数置于0即可。 lete work assigned by the superior party. Third, focus on improving service, the abilityworking style, good at policy advocacy, and to perform good decisions of party committees and Governments, determined to comp soluteand exemplary role of party members is unworthy party members. Both staff members and no staff members, both vigorous and reious undertakings, requires each party to pay and hard work. No free ride thing under the Sun, if you cannot play a vanguard practices. The development of var19