CN217527423U - Device for monitoring chemical reaction rate and reaction time - Google Patents

Device for monitoring chemical reaction rate and reaction time Download PDF

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CN217527423U
CN217527423U CN202220923030.XU CN202220923030U CN217527423U CN 217527423 U CN217527423 U CN 217527423U CN 202220923030 U CN202220923030 U CN 202220923030U CN 217527423 U CN217527423 U CN 217527423U
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bin
chemical reaction
electromagnetic stirring
stirring device
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宋晓云
徐磊
李秋馀
徐婷婷
逄博
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Qingdao Institute of Marine Geology
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Abstract

本实用新型公开一种监测化学反应速率和反应时间的装置,包括测试装置和计算机,测试装置包括保温仓、电磁搅拌装置以及温度传感器、电导率传感器和样品仓;保温仓上安装有保温仓盖,样品仓和电磁搅拌装置设置在保温仓内,样品仓放置在电磁搅拌装置上,电磁搅拌装置的搅拌转子放置在样品池内,温度传感器和电导率传感器贯穿密封盖插入样品池内,通过计算机记录温度传感器和电导率传感器的数据。使用时将反应样品置于样品池中,之后开启电磁搅拌装置并在计算机上自动记录反应样品发生化学反应过程中的温度和电导率变化曲线。本实方案结构简单,使用方便,实验设备便携,成本低廉,可以连续、精确监测化学反应的速率、起止时间以及反应全过程。

Figure 202220923030

The utility model discloses a device for monitoring chemical reaction rate and reaction time, comprising a test device and a computer. The test device includes a thermal insulation bin, an electromagnetic stirring device, a temperature sensor, a conductivity sensor and a sample bin; the thermal insulation bin is provided with a thermal insulation bin cover , the sample chamber and the electromagnetic stirring device are set in the insulation chamber, the sample chamber is placed on the electromagnetic stirring device, the stirring rotor of the electromagnetic stirring device is placed in the sample cell, the temperature sensor and the conductivity sensor are inserted into the sample cell through the sealing cover, and the temperature is recorded by the computer. Data from sensors and conductivity sensors. When in use, the reaction sample is placed in the sample cell, and then the electromagnetic stirring device is turned on and the temperature and conductivity change curve of the reaction sample during the chemical reaction process is automatically recorded on the computer. The present scheme has the advantages of simple structure, convenient use, portable experimental equipment and low cost, and can continuously and accurately monitor the rate, start and end time of the chemical reaction and the whole reaction process.

Figure 202220923030

Description

一种监测化学反应速率和反应时间的装置A device for monitoring chemical reaction rate and reaction time

技术领域technical field

本实用新型属于实验室研究用测试装置领域,具体涉及一种监测化学反应速率和反应时间的装置。The utility model belongs to the field of testing devices for laboratory research, in particular to a device for monitoring chemical reaction rate and reaction time.

背景技术Background technique

化学反应是指分子破裂成原子,原子又重新排列组合生成新分子的过程,在反应过程中常伴有发光、发热、以及离子浓度变化等现象。化学反应速率则是用来表示化学反应进行的快慢,通常与反应物的性质、浓度、温度、压力、催化剂等都有关,可通过控制反应条件来控制化学反应速率。由于在化学反应过程中通常伴随着热量以及离子浓度的变化,因此热量与离子浓度变化往往侧面反映了化学反应的速率和程度。A chemical reaction is a process in which molecules are broken into atoms, and the atoms are rearranged and combined to form new molecules. The reaction process is often accompanied by phenomena such as luminescence, heat generation, and changes in ion concentration. The chemical reaction rate is used to express the speed of the chemical reaction, which is usually related to the nature, concentration, temperature, pressure, catalyst, etc. of the reactants. The chemical reaction rate can be controlled by controlling the reaction conditions. Since the chemical reaction is usually accompanied by changes in heat and ion concentration, changes in heat and ion concentration often reflect the rate and extent of chemical reactions.

研究发现,在涉及热量以及离子浓度变化的化学反应中,反应过程中的温度及电导率变化情况通常能够用来表示化学反应的速率以及化学反应开始与结束的时间。化学反应进行与否以及不同条件因素的改变对化学反应进行程度和反应速率的影响规律在科学研究中有着重要意义,对于确定化学反应中不同参数值以及反应条件的研究具有关键的指导作用。因此实现对化学反应速率、起止时间以及反应全过程的连续、精确监测在涉及化学反应的科学研究中显得尤为重要。Studies have found that in chemical reactions involving changes in heat and ion concentration, changes in temperature and conductivity during the reaction can often be used to indicate the rate of the chemical reaction and the time at which the chemical reaction begins and ends. Whether the chemical reaction is carried out or not and the influence of different conditional factors on the degree of chemical reaction and reaction rate are of great significance in scientific research, and have a key guiding role in determining different parameter values and reaction conditions in chemical reactions. Therefore, it is particularly important to realize the continuous and accurate monitoring of the chemical reaction rate, start and end time and the whole process of the reaction in scientific research involving chemical reactions.

目前在实验室研究中,主要是通过明显的反应现象如生成气体或沉淀、反应过程中颜色或状态变化来判断化学反应的发生与停止,其缺点在于判定误差大、适用范围小,对于表观现象不明显的化学反应无法进行监测;而通过仪器进行监测的方法往往操作繁琐、成本较高且适用类型单一,部分受环境因素影响较大,无法实现简单、快速的监测。At present, in laboratory research, the occurrence and stop of chemical reactions are mainly judged by obvious reaction phenomena such as gas generation or precipitation, and color or state changes during the reaction process. Chemical reactions with insignificant phenomena cannot be monitored; and the methods of monitoring by instruments are often cumbersome, expensive, and applicable to a single type, and some are greatly affected by environmental factors, so simple and rapid monitoring cannot be achieved.

实用新型内容Utility model content

本实用新型为解决现有技术中通过观察反应现象来判断化学反应的时间和速率所存在的判定误差大、适用范围小等缺陷,提出一种监测化学反应速率和反应时间的装置,。The utility model proposes a device for monitoring the chemical reaction rate and reaction time in order to solve the defects in the prior art, such as large judgment error and small scope of application, which exist in the prior art for judging the time and rate of chemical reaction by observing the reaction phenomenon.

本实用新型是采用以下的技术方案实现的:一种监测化学反应速率和反应时间的装置,包括测试装置和计算机,测试装置通过数据线与计算机相连;所述测试装置包括保温仓、电磁搅拌装置以及温度传感器、电导率传感器和样品仓;保温仓上安装有保温仓盖,样品仓和电磁搅拌装置设置在保温仓内,样品仓放置在电磁搅拌装置上,在样品仓的底部设置有样品池,电磁搅拌装置的搅拌转子放置在样品池内;The utility model is realized by adopting the following technical scheme: a device for monitoring chemical reaction rate and reaction time, comprising a test device and a computer, the test device is connected with the computer through a data cable; the test device comprises a thermal insulation bin, an electromagnetic stirring device and a temperature sensor, a conductivity sensor and a sample compartment; an insulation compartment cover is installed on the insulation compartment, the sample compartment and the electromagnetic stirring device are arranged in the insulation compartment, the sample compartment is placed on the electromagnetic stirring device, and a sample pool is arranged at the bottom of the sample compartment , the stirring rotor of the electromagnetic stirring device is placed in the sample cell;

样品仓的上开口通过密封盖密封,温度传感器和电导率传感器贯穿密封盖插入样品池内,通过计算机记录温度传感器和电导率传感器的数据。The upper opening of the sample compartment is sealed by a sealing cover, the temperature sensor and the conductivity sensor are inserted into the sample cell through the sealing cover, and the data of the temperature sensor and the conductivity sensor are recorded by the computer.

进一步的,所述保温仓采用导热系数小于0.038w/(m·k)的材料制成,且保温仓的壁厚不小于10cm,保温仓和保温仓盖构成密封环境。Further, the thermal insulation bin is made of a material with a thermal conductivity less than 0.038w/(m·k), the wall thickness of the thermal insulation bin is not less than 10cm, and the thermal insulation bin and the thermal insulation bin cover constitute a sealed environment.

进一步的,所述电磁搅拌装置的转速在100rpm~1500rpm范围内调节。Further, the rotational speed of the electromagnetic stirring device is adjusted within the range of 100rpm to 1500rpm.

进一步的,所述样品池采用玻璃、不锈钢、聚乙烯或聚四氟乙烯材质材质。Further, the sample cell is made of glass, stainless steel, polyethylene or polytetrafluoroethylene.

进一步的,所述温度传感器的外侧由透明特氟龙套包裹,耐酸碱盐及有机腐蚀,测量温度范围为-200~+260℃。Further, the outer side of the temperature sensor is wrapped by a transparent Teflon sleeve, which is resistant to acid, alkali, salt and organic corrosion, and the measurement temperature range is -200 to +260°C.

进一步的,所述电导率传感器外层由透明特氟龙套包裹,测量电导率范围为0~99999uS/cm。Further, the outer layer of the electrical conductivity sensor is wrapped by a transparent Teflon sleeve, and the measured electrical conductivity ranges from 0 to 99999 uS/cm.

与现有技术相比,本实用新型的优点和积极效果在于:Compared with the prior art, the advantages and positive effects of the present utility model are:

本装置可以快速、连续、精确监测化学反应速率、起止时间以及反应全过程:通过温度传感器和电导率传感器两个因素对化学反应过程进行监测,整个监测过程在密闭绝热环境中完成,受环境影响小;利用计算机进行信号采集,连续、自动记录化学反应过程中的电导率、温度参数的变化曲线,推导化学反应进程;本实验设备便携、成本低廉、操作简单、适用范围广,可满足大部分常规实验室化学反应研究要求,技术经济效益明显。The device can quickly, continuously and accurately monitor the chemical reaction rate, start and end time, and the entire reaction process: the chemical reaction process is monitored by two factors: a temperature sensor and a conductivity sensor, and the entire monitoring process is completed in a closed adiabatic environment and is affected by the environment. Small; use computer for signal acquisition, continuously and automatically record the change curves of conductivity and temperature parameters in the chemical reaction process, and deduce the chemical reaction process; this experimental equipment is portable, low-cost, simple to operate, and has a wide range of applications, which can meet the needs of most Conventional laboratory chemical reaction research requirements, technical and economic benefits are obvious.

附图说明Description of drawings

图1为本实用新型实施例所述装置的结构示意图;1 is a schematic structural diagram of the device according to an embodiment of the present invention;

图2为本使用新型实施例所述测试结果示意图;2 is a schematic diagram of the test results described in the use of the novel embodiment;

其中:1、测试装置,2、计算机,3、保温仓盖,4、数据线,5、温度传感器,6、电导率传感器,7、样品仓,8、样品池,9、搅拌转子,10、电磁搅拌装置,11、保温仓,12、密封盖。Among them: 1. Test device, 2. Computer, 3. Insulation compartment cover, 4. Data cable, 5. Temperature sensor, 6. Conductivity sensor, 7. Sample compartment, 8. Sample cell, 9. Stirring rotor, 10. Electromagnetic stirring device, 11, insulation compartment, 12, sealing cover.

具体实施方式Detailed ways

为了能够更加清楚地理解本实用新型的上述目的、特征和优点,下面结合附图及实施例对本实用新型做进一步说明。在下面的描述中阐述了很多具体细节以便于充分理解本实用新型,但是,本实用新型还可以采用不同于在此描述的其他方式来实施,因此,本实用新型并不限于下面公开的具体实施例。In order to be able to more clearly understand the above objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific implementation disclosed below. example.

考虑到在涉及热量以及离子浓度变化的化学反应中,反应过程中的温度及电导率变化情况能够用来表示化学反应的速率以及化学反应开始与结束的时间,本实施例提供一种用于监测化学反应速率和反应时间的装置,实现反应过程中涉及温度或离子浓度变化的化学反应的速率、起止时间以及反应全过程的快速、简单、连续、精确监测,具体如图1所示。Considering that in a chemical reaction involving changes in heat and ion concentration, the temperature and conductivity changes during the reaction can be used to indicate the rate of the chemical reaction and the time when the chemical reaction starts and ends. The device for chemical reaction rate and reaction time realizes the rapid, simple, continuous and accurate monitoring of the chemical reaction rate, start and end time and the entire reaction process involving changes in temperature or ion concentration during the reaction process, as shown in Figure 1.

所述装置包括测试装置1和计算机2,测试装置1通过数据线4与计算机2相连,所述测试装置1包括保温仓11、电磁搅拌装置10以及温度传感器5、电导率传感器6和样品仓7;保温仓11上安装有保温仓盖3,样品仓7和电磁搅拌装置10设置在保温仓11内,样品仓7放置在电磁搅拌装置10上,在样品仓7的底部设置有样品池8,电磁搅拌装置10的搅拌转子9放置在样品池8内;样品仓7的上开口通过密封盖12密封,温度传感器5和电导率传感器6贯穿密封盖12插入样品池8内,通过计算机记录温度传感器5和电导率传感器6的数据。The device includes a test device 1 and a computer 2. The test device 1 is connected to the computer 2 through a data line 4. The test device 1 includes a thermal insulation chamber 11, an electromagnetic stirring device 10, a temperature sensor 5, a conductivity sensor 6 and a sample chamber 7. The insulation warehouse 11 is provided with the insulation warehouse cover 3, the sample warehouse 7 and the electromagnetic stirring device 10 are arranged in the insulation warehouse 11, the sample warehouse 7 is placed on the electromagnetic stirring device 10, and the sample tank 8 is provided at the bottom of the sample warehouse 7, The stirring rotor 9 of the electromagnetic stirring device 10 is placed in the sample cell 8; the upper opening of the sample chamber 7 is sealed by the sealing cover 12, the temperature sensor 5 and the conductivity sensor 6 are inserted into the sample cell 8 through the sealing cover 12, and the temperature sensor is recorded by the computer. 5 and conductivity sensor 6 data.

本实施例中,所述保温仓11采用导热系数小于0.038w/(m·k)的材料制成,且保温仓11的壁厚不小于10cm,保温仓11和保温仓盖12构成密封环境;所述电磁搅拌装置10的转速在100~1500rpm范围内调节,利用电磁搅拌装置10带动搅拌转子9转动,搅拌转子9的数量为多个,其直径约为1cm,使密封状态下的样品在保温仓11内持续均匀混合;通过温度传感器5和电导率传感器6连续不断地测量样品温度和电导率值,并经由数据线4传递至计算机2内记录成数据曲线,实现数据的实时观察与比较。In this embodiment, the thermal insulation bin 11 is made of a material with a thermal conductivity less than 0.038w/(m·k), and the wall thickness of the thermal insulation bin 11 is not less than 10cm, and the thermal insulation bin 11 and the thermal insulation bin cover 12 form a sealed environment; The rotating speed of the electromagnetic stirring device 10 is adjusted within the range of 100-1500 rpm, and the electromagnetic stirring device 10 is used to drive the stirring rotor 9 to rotate. The chamber 11 is continuously and uniformly mixed; the temperature and conductivity values of the sample are continuously measured by the temperature sensor 5 and the conductivity sensor 6, and are transferred to the computer 2 via the data line 4 and recorded as a data curve, so as to realize the real-time observation and comparison of the data.

其中,所述样品池8采用玻璃、不锈钢、聚乙烯、聚四氟乙烯材质等材质,具体可根据化学反应类型不同进行更换,所述的温度传感器5外层由透明特氟龙(聚四氟乙烯)套包裹,耐酸碱盐及有机腐蚀,测量温度范围为-200~+260℃;所述电导率传感器6外层由透明特氟龙(聚四氟乙烯)套包裹,耐酸碱盐及有机腐蚀,测量电导率范围为0~99999uS/cm。Wherein, the sample cell 8 is made of glass, stainless steel, polyethylene, polytetrafluoroethylene and other materials, which can be replaced according to different chemical reaction types. The outer layer of the temperature sensor 5 is made of transparent Teflon (polytetrafluoroethylene). The outer layer of the conductivity sensor 6 is wrapped by a transparent Teflon (polytetrafluoroethylene) sleeve, which is resistant to acid and alkali salts. And organic corrosion, the measured conductivity range is 0 ~ 99999uS/cm.

具体操作时,采用以下方式:For specific operations, use the following methods:

1)首先将样品置于样品池8中,放置搅拌转子9,之后将样品池8放置于样品仓7底部的电磁搅拌装置10上,并旋紧密封盖12;1) first place the sample in the sample cell 8, place the stirring rotor 9, then place the sample cell 8 on the electromagnetic stirring device 10 at the bottom of the sample chamber 7, and tighten the sealing cover 12;

2)将温度传感器5和电导率传感器6带有感测点的一端通过密封盖12伸入样品池8中,另一端与数据线4连接,温度传感器5和电导率传感器6的感测点置于反应样品内部,密封良好后,盖紧保温仓盖3;2) Extend the end of the temperature sensor 5 and the conductivity sensor 6 with the sensing point into the sample cell 8 through the sealing cover 12, the other end is connected with the data line 4, and the sensing points of the temperature sensor 5 and the conductivity sensor 6 are placed. Inside the reaction sample, after it is well sealed, tightly cover the insulation compartment cover 3;

3)计算机2与数据线4链接后,开启电磁搅拌装置10并在计算机2上启动测试软件自动记录样品化学反应过程中的温度和电导率变化曲线。3) After the computer 2 is connected to the data line 4, the electromagnetic stirring device 10 is turned on and the test software is started on the computer 2 to automatically record the temperature and conductivity change curves during the chemical reaction of the sample.

本方案通过在密闭绝热的环境中不断搅拌反应样品,实时监测样品化学反应过程中温度和电导率的变化,实现不同条件因素下化学反应过程的快速与准确监测;主要用于实验研究中有机、无机等领域的反应过程监测及实验条件探究,为实验条件及参数的优化和选择提供支撑。This scheme realizes the rapid and accurate monitoring of the chemical reaction process under different conditions by continuously stirring the reaction sample in a closed and adiabatic environment, and monitoring the changes of temperature and conductivity during the chemical reaction of the sample in real time. Reaction process monitoring and experimental conditions exploration in inorganic and other fields provide support for the optimization and selection of experimental conditions and parameters.

以上所述,仅是本实用新型的较佳实施例而已,并非是对本实用新型作其它形式的限制,任何熟悉本专业的技术人员可能利用上述揭示的技术内容加以变更或改型为等同变化的等效实施例应用于其它领域,但是凡是未脱离本实用新型技术方案内容,依据本实用新型的技术实质对以上实施例所作的任何简单修改、等同变化与改型,仍属于本实用新型技术方案的保护范围。The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to change or remodel to equivalent changes. The equivalent embodiments are applied in other fields, but any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model still belong to the technical solutions of the present utility model without departing from the technical solution content of the present utility model. scope of protection.

Claims (6)

1. A device for monitoring chemical reaction rate and reaction time, comprising a testing device (1) and a computer (2), the testing device (1) being connected to the computer (2) by a data line (4), characterized in that:
the testing device (1) comprises a heat preservation bin (11), an electromagnetic stirring device (10), a temperature sensor (5), a conductivity sensor (6) and a sample bin (7); a heat preservation bin cover (3) is arranged on the heat preservation bin (11), the sample bin (7) and the electromagnetic stirring device (10) are arranged in the heat preservation bin (11), the sample bin (7) is placed on the electromagnetic stirring device (10), a sample pool (8) is arranged at the bottom of the sample bin (7), and a stirring rotor (9) of the electromagnetic stirring device (10) is placed in the sample pool (8);
the upper opening of the sample bin (7) is sealed by a sealing cover (12), the temperature sensor (5) and the conductivity sensor (6) penetrate through the sealing cover (12) and are inserted into the sample pool (8), and data of the temperature sensor (5) and the conductivity sensor (6) are recorded by a computer.
2. The apparatus for monitoring chemical reaction rate and reaction time as claimed in claim 1, wherein: the heat-insulating bin (11) is made of a material with a heat conductivity coefficient of less than 0.038 w/(m.k), the wall thickness of the heat-insulating bin is not less than 10cm, and the heat-insulating bin (11) and the heat-insulating bin cover (3) form a sealed environment.
3. An apparatus for monitoring chemical reaction rates and reaction times as defined in claim 1, wherein: the rotating speed of the electromagnetic stirring device (10) is adjusted within the range of 100 rpm-1500 rpm.
4. An apparatus for monitoring chemical reaction rates and reaction times as defined in claim 1, wherein: the sample cell (8) is made of glass, stainless steel, polyethylene or polytetrafluoroethylene.
5. An apparatus for monitoring chemical reaction rates and reaction times as defined in claim 1, wherein: the outer side of the temperature sensor (5) is wrapped by a transparent Teflon sleeve, and is resistant to acid, alkali and organic corrosion, and the measurement temperature range is-200 to +260 ℃.
6. An apparatus for monitoring chemical reaction rates and reaction times as defined in claim 1, wherein: the outer layer of the conductivity sensor (6) is wrapped by a transparent Teflon sleeve, and the measured conductivity range is 0-99999 uS/cm.
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