CN217527423U - Device for monitoring chemical reaction rate and reaction time - Google Patents
Device for monitoring chemical reaction rate and reaction time Download PDFInfo
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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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Abstract
The utility model discloses a device for monitoring chemical reaction rate and reaction time, which comprises a testing device and a computer, wherein the testing device comprises a heat preservation bin, an electromagnetic stirring device, a temperature sensor, a conductivity sensor and a sample bin; install heat preservation cang gai on the heat preservation storehouse, sample storehouse and electromagnetic stirring device set up in the heat preservation storehouse, and the sample storehouse is placed on electromagnetic stirring device, and electromagnetic stirring device's stirring rotor is placed in the sample cell, and temperature sensor and conductivity sensor run through sealed lid and insert in the sample cell, through computer record temperature sensor and conductivity sensor's data. When the device is used, a reaction sample is placed in a sample cell, then an electromagnetic stirring device is started, and the temperature and conductivity change curve of the reaction sample in the chemical reaction process is automatically recorded on a computer. The scheme has the advantages of simple structure, convenient use, portable experimental equipment and low cost, and can continuously and accurately monitor the speed, the start-stop time and the whole reaction process of the chemical reaction.
Description
Technical Field
The utility model belongs to testing arrangement field for the laboratory research, concretely relates to monitoring chemical reaction rate and reaction time's device.
Background
The chemical reaction refers to a process of generating new molecules by the rearrangement and combination of atoms after the molecules are broken into atoms, and the reaction process is often accompanied by phenomena such as luminescence, heat generation, and ion concentration change. The chemical reaction rate is used to indicate how fast a chemical reaction proceeds, and is generally related to the nature, concentration, temperature, pressure, catalyst, etc. of reactants, and can be controlled by controlling the reaction conditions. Since thermal and ionic concentration changes are typically associated with the chemical reaction process, the rate and extent of the chemical reaction is often laterally reflected by the thermal and ionic concentration changes.
It has been found that in chemical reactions involving changes in heat and ion concentration, changes in temperature and conductivity during the reaction can 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 rule of the change of different condition factors on the chemical reaction progress degree and the reaction rate have important significance in scientific research, and have a key guiding function on the research of determining different parameter values and reaction conditions in the chemical reaction. Therefore, continuous and accurate monitoring of the chemical reaction rate, the starting and stopping time and the whole reaction process is important in scientific research related to chemical reactions.
At present, in laboratory research, the occurrence and the stop of chemical reaction are mainly judged through obvious reaction phenomena such as gas generation or precipitation and color or state change in the reaction process, and the defects of large judgment error, small application range and incapability of monitoring the chemical reaction with unobvious appearance phenomena are realized; the method for monitoring through the instrument is often complex in operation, high in cost, single in applicable type, and partially greatly influenced by environmental factors, so that simple and rapid monitoring cannot be realized.
SUMMERY OF THE UTILITY MODEL
The utility model provides a device for monitoring chemical reaction rate and reaction time, which solves the defects of large judgment error, small application range and the like existing in the prior art for judging the chemical reaction time and rate by observing reaction phenomena.
The utility model discloses an adopt following technical scheme to realize: a device for monitoring chemical reaction rate and reaction time comprises a testing device and a computer, wherein the testing device is connected with the computer through a data line; the testing device comprises a heat preservation cabin, an electromagnetic stirring device, a temperature sensor, a conductivity sensor and a sample cabin; the heat preservation bin is provided with a heat preservation bin cover, the sample bin and the electromagnetic stirring device are arranged in the heat preservation bin, the sample bin is placed on the electromagnetic stirring device, the bottom of the sample bin is provided with a sample pool, and a stirring rotor of the electromagnetic stirring device is placed in the sample pool;
the upper opening of the sample chamber is sealed by a sealing cover, the temperature sensor and the conductivity sensor penetrate through the sealing cover and are inserted into the sample cell, and the data of the temperature sensor and the conductivity sensor are recorded by a computer.
Furthermore, the heat-insulating bin is made of a material with a heat conductivity coefficient smaller than 0.038 w/(m.k), the wall thickness of the heat-insulating bin is not smaller than 10cm, and the heat-insulating bin cover form a sealed environment.
Furthermore, the rotating speed of the electromagnetic stirring device is adjusted within the range of 100 rpm-1500 rpm.
Furthermore, the sample cell is made of glass, stainless steel, polyethylene or polytetrafluoroethylene.
Furthermore, the outer side of the temperature sensor is wrapped by a transparent Teflon sleeve, and is resistant to acid, alkali, salt and organic corrosion, and the measurement temperature range is-200 to +260 ℃.
Further, the outer layer of the conductivity sensor is wrapped by a transparent Teflon sleeve, and the measured conductivity range is 0-99999 uS/cm.
Compared with the prior art, the utility model discloses an advantage lies in with positive effect:
the device can monitor the chemical reaction rate, the start-stop time and the whole reaction process rapidly, continuously and accurately: the chemical reaction process is monitored by two factors, namely a temperature sensor and a conductivity sensor, the whole monitoring process is finished in a closed heat-insulating environment, and the influence of the environment is small; using a computer to collect signals, continuously and automatically recording the change curves of the conductivity and the temperature parameters in the chemical reaction process, and deducing the chemical reaction process; the experimental equipment is portable, low in cost, simple to operate, wide in application range, capable of meeting the research requirements of most conventional laboratory chemical reactions, and obvious in technical and economic benefits.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present invention;
FIG. 2 is a graph showing the results of the test conducted using the novel embodiment;
wherein: 1. the device comprises a testing device, 2, a computer, 3, a heat preservation bin cover, 4, a data line, 5, a temperature sensor, 6, a conductivity sensor, 7, a sample bin, 8, a sample pool, 9, a stirring rotor, 10, an electromagnetic stirring device, 11, a heat preservation bin, 12 and a sealing cover.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further explained with reference to the accompanying drawings and embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the specific embodiments disclosed below.
Considering that the temperature and conductivity changes during the reaction process can be used to indicate the rate of the chemical reaction and the starting and ending time of the chemical reaction in the chemical reaction involving the changes of heat and ion concentration, the present embodiment provides a device for monitoring the rate of the chemical reaction and the reaction time, which can realize the rapid, simple, continuous and accurate monitoring of the rate, starting and ending time of the chemical reaction involving the changes of temperature or ion concentration during the reaction process and the whole process of the reaction, as shown in fig. 1.
The device comprises a testing device 1 and a computer 2, wherein the testing device 1 is connected with the computer 2 through a data line 4, and the testing device 1 comprises a heat-preservation cabin 11, an electromagnetic stirring device 10, a temperature sensor 5, an electric conductivity sensor 6 and a sample cabin 7; the heat preservation bin 11 is provided with a heat preservation bin cover 3, 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, the bottom of the sample bin 7 is provided with a sample pool 8, and a stirring rotor 9 of the electromagnetic stirring device 10 is placed in the sample pool 8; the upper opening of the sample chamber 7 is sealed by a 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 data of the temperature sensor 5 and the conductivity sensor 6 are recorded by a computer.
In the embodiment, 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 11 is not less than 10cm, and the heat-insulating bin 11 and the heat-insulating 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, the electromagnetic stirring device 10 is utilized to drive the stirring rotors 9 to rotate, the number of the stirring rotors 9 is multiple, the diameter of the stirring rotors is about 1cm, and samples in a sealed state are continuously and uniformly mixed in the heat preservation bin 11; the temperature sensor 5 and the conductivity sensor 6 continuously measure the temperature and conductivity values of the sample, and the measured values are transmitted to the computer 2 through the data line 4 to be recorded into a data curve, so that the real-time observation and comparison of the data are realized.
The sample cell 8 is made of glass, stainless steel, polyethylene, polytetrafluoroethylene and the like, and can be replaced according to different chemical reaction types, the outer layer of the temperature sensor 5 is wrapped by a transparent Teflon (polytetrafluoroethylene) sleeve, and is resistant to acid, alkali and organic corrosion, and the measurement temperature range is-200- +260 ℃; the outer layer of the conductivity sensor 6 is wrapped by a transparent Teflon (polytetrafluoroethylene) sleeve, is resistant to acid, alkali and organic corrosion, and has a conductivity measurement range of 0-99999 uS/cm.
In the specific operation, the following modes are adopted:
1) Firstly, a sample is placed in a sample cell 8, a stirring rotor 9 is placed, then the sample cell 8 is placed on an electromagnetic stirring device 10 at the bottom of a sample bin 7, and a sealing cover 12 is screwed;
2) One ends of the temperature sensor 5 and the conductivity sensor 6 with sensing points extend into the sample pool 8 through a sealing cover 12, the other ends are connected with the data line 4, the sensing points of the temperature sensor 5 and the conductivity sensor 6 are arranged in the reaction sample, and after the sealing is good, the heat preservation bin cover 3 is tightly covered;
3) After the computer 2 is linked with the data line 4, the electromagnetic stirring device 10 is started and the test software is started on the computer 2 to automatically record the temperature and conductivity change curve in the chemical reaction process of the sample.
According to the scheme, the reaction sample is continuously stirred in a closed heat-insulating environment, the temperature and conductivity changes of the sample in the chemical reaction process are monitored in real time, and the chemical reaction process is rapidly and accurately monitored under different condition factors; the method is mainly used for reaction process monitoring and experimental condition exploration in the fields of organic and inorganic experiments and the like, and provides support for optimization and selection of experimental conditions and parameters.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220923030.XU CN217527423U (en) | 2022-04-20 | 2022-04-20 | Device for monitoring chemical reaction rate and reaction time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220923030.XU CN217527423U (en) | 2022-04-20 | 2022-04-20 | Device for monitoring chemical reaction rate and reaction time |
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| Publication Number | Publication Date |
|---|---|
| CN217527423U true CN217527423U (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220923030.XU Active CN217527423U (en) | 2022-04-20 | 2022-04-20 | Device for monitoring chemical reaction rate and reaction time |
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| CN (1) | CN217527423U (en) |
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- 2022-04-20 CN CN202220923030.XU patent/CN217527423U/en active Active
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