The utility model discloses a controlled heat filtering apparatus for laboratory, comprising a cup body, the cup body is fixedly provided with a Buchner funnel, import and export terminal Buchner funnel and horn tube end sealing connection pipe through the outlet end of the horn, and the cup body and the cup body is sealed and connected with a heating device. The cup bottom, the cup body is provided with a temperature sensor, an external cup body is provided with a temperature controller, temperature controller with temperature display, temperature sensor and heating device are respectively connected with the temperature control instrument. The utility model is provided with a thermocouple and a heating device, so that the required temperature can be quickly reached, and the temperature control is accurate. When the same kind of solution is thermally filtered, the continuous heat filter can be realized only by changing the receiving bottle from the outside, and the operation is convenient. The funnel of the utility model has the advantages of convenient disassembly and easy cleaning and replacement, and the utility model has the advantages of convenient use and cleaning, controllable filtering temperature, small heat energy consumption, convenient maintenance, etc. compared with the traditional heat filter device.
【技术实现步骤摘要】
一种实验室用可控温热过滤装置
本技术属于化工设备
,具体涉及一种实验室用可控温热过滤装置。
技术介绍
在热过滤的实际操作中,传统的热过滤法,难以将粗产品的饱和溶液维持在恒定的温度。当待滤溶液温度下降达到过饱和时,易造成晶体析出,尤其是待结晶的物质溶解度随温度变化较大时,漏斗的颈部和滤纸上析出晶体的现象更为严重,出现过滤不畅,甚至无法过滤的情况。因此适合不同热过滤方法的设备逐渐被技术。大庆师范学院化学化工学院(张秀华,孙德军,实验室科学,16(5):06-3),将布氏漏斗或玻璃漏斗或带夹层的漏斗置于电热套内来实现对漏斗的加热,或者采取玻璃漏斗缠绕乳胶管,把乳胶管两端与超级恒温水浴输出水口接通来实现热过滤。华东化工学院化学系(焦家骏,大学化学,6(5),1991年10月)运用溶剂受热汽化而膨胀,冷却后又收缩的特点,使接收瓶内产生负压,通过塞有脱脂棉的导管,将待纯化物的热饱和溶液吸人接收瓶内,从而达到热过滤的目的。河南中医学院(李玉贤,王磊,王明慧等,CN203043680U)玻璃漏斗形成空腔,通过气体加热的方法进行对漏斗的加热。江西九江学院化学化工学院(张康华,曹小华,徐常龙,陶春元,一种简易的热过滤方法《教学仪器与实验》)把布氏漏斗和抽滤瓶放在90℃左右热水浴(或烘箱)中预热的方法对漏斗进行加热)。中国专利CN200710021636.4运用过滤物置放于加热容器中的方法对漏斗进行加热)。济南大学(马树华,赵雪萍,徐鹏远CN203469641U)运用内导热桶,加热层,保温层与内导热桶匹配的保温盖来进行漏斗的加热保温装置。上述方法有的难于控制热过滤温度,有 ...
【技术保护点】
一种实验室用可控温热过滤装置,包括杯体,其特征在于:所述杯体内固定安装有布氏漏斗,布氏漏斗的出口端与牛角管的进口端密封连接,牛角管的出口端穿过杯体且与杯体相接处密封连接,所述杯体下方设有加热装置,杯体内设有温度传感器,杯体外部下端设有温控仪,温控仪上设有温度显示器,温度传感器和加热装置分别与温控仪电连接。
【技术特征摘要】
1.一种实验室用可控温热过滤装置,包括杯体,其特征在于:所述杯体内固定安装有布氏漏斗,布氏漏斗的出口端与牛角管的进口端密封连接,牛角管的出口端穿过杯体且与杯体相接处密封连接,所述杯体下方设有加热装置,杯体内设有温度传感器,杯体外部下端设有温控仪,温控仪上设有温度显示器,温度传感器和加热装置分别与温控仪电连接。2.根据权利要求1所述的实...
【专利技术属性】
技术研发人员:赵林秀,李刚森,李彩霞,赵远,沈亚梅,
申请(专利权)人:中北大学,
类型:新型
国别省市:山西,14
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