CN110389164B - Automatic cleaning device for solution electric signal measurement - Google Patents
Automatic cleaning device for solution electric signal measurement Download PDFInfo
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- CN110389164B CN110389164B CN201810359243.2A CN201810359243A CN110389164B CN 110389164 B CN110389164 B CN 110389164B CN 201810359243 A CN201810359243 A CN 201810359243A CN 110389164 B CN110389164 B CN 110389164B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
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Abstract
The invention discloses an automatic cleaning device for solution electric signal measurement, which comprises a reaction assembly and a stirring assembly, wherein the reaction assembly comprises a reaction container (1) and a cover body (2), and the bottom of the reaction container (1) is provided with the stirring assembly (3) for stirring liquid in the reaction container (1). The automatic cleaning device for solution electric signal measurement provided by the invention has the advantages of simple structure, convenience in operation, low cost, strong universality, short detection time and high detection sensitivity and efficiency.
Description
Technical Field
The invention relates to the field of solution analysis and detection, in particular to an automatic cleaning device for solution electric signal measurement.
Background
In many fields such as biomedicine, chemical engineering, environmental science, and the like, in the reaction, chemical reaction or analysis and detection process of many new synthetic products, analysis and detection are often performed by using an electrochemical method, and the final detection result is determined by detecting the change of an electrochemical signal of an electrode in a solution to be detected. In the process of detection and analysis, the detection time, the detection sensitivity and the detection precision of a detection instrument are the key for determining the detection result and efficiency.
The existing solution electric signal measuring device has a complex structure and complex operation steps, and because the reaction containers are recycled, after the detection is finished, the reaction containers are generally cleaned by a splitting instrument, the automation degree is not high, the detection time is prolonged virtually when a plurality of samples are detected, and the detection efficiency is reduced; in addition, for some reactions which need to be carried out under constant temperature conditions, the existing detection instrument lacks a device for stably controlling the temperature, so that the reaction conditions are unstable, and the detection precision is influenced.
Therefore, it is an urgent need to solve the problems of the prior art to design an automatic cleaning device for solution electrical signal measurement, which has a simple structure, short detection time, high sensitivity and accuracy, simple operation and long service life.
Disclosure of Invention
In order to overcome the above problems, the present inventors have conducted intensive studies to design an automatic cleaning apparatus for solution electrical signal measurement, the apparatus comprising a reaction assembly and a stirring assembly, wherein the reaction assembly comprises a reaction vessel and a cover, and the stirring assembly is disposed at the bottom of the reaction vessel to stir the liquid in the reaction vessel; the cover body is also provided with a through hole, so that a cleaning agent is injected to realize the automatic cleaning function. The device of the invention has simple structure, short detection time, high detection efficiency and high sensitivity, thereby completing the invention.
Specifically, the present invention aims to provide the following:
in a first aspect, an automatic cleaning device for solution electrical signal measurement is provided, the device includes a reaction assembly and a stirring assembly, wherein the reaction assembly includes a reaction vessel 1 and a cover body 2, and a stirring assembly 3 is disposed at the bottom of the reaction vessel 1 to stir liquid in the reaction vessel 1.
In a second aspect, a solution electrical signal measuring system is provided, which preferably includes the above automatic cleaning device for solution electrical signal measurement, wherein the system further includes a heating assembly 4 for heating the insulating liquid, a first driving member 5 for driving the insulating liquid to discharge, a second driving member 6 for driving the waste liquid to discharge, and a third driving member 7 for driving the cleaning agent to enter.
In a third aspect, a method for measuring an electric signal of a solution, preferably using the above-mentioned system for measuring an electric signal of a solution, comprises the steps of:
1) installing a stirring component 3, and then starting a heating component 4 and a first driving component 5 to enable the heat preservation liquid heated to the preset temperature to enter an outer layer jacket 12 of the reaction vessel 1 and form a circulation passage;
2) the frame body 21 and the frame sleeve 22 are connected in a matching way, a reaction electrode is inserted into the through hole of the frame body 21, and then the connected frame body 21 and the frame sleeve 22 are installed at the top end of the reaction vessel 1;
3) adding detection liquid into a sample adding hole in the frame body 21, and then starting the stirring assembly to perform measurement;
4) after the measurement is finished, the second driving piece 6 is started to discharge the detection liquid; then the second driving part 6 is closed, the third driving part 7 is opened, and cleaning agent is injected for cleaning; after the cleaning is finished, the third driving member 7 is closed, the second driving member 6 is opened, and the cleaning agent is discharged.
The invention has the advantages that:
(1) the automatic cleaning device for solution electric signal measurement provided by the invention has the advantages of simple structure, convenience in operation, low cost and strong universality;
(2) the automatic cleaning device for solution electric signal measurement can be automatically cleaned after the detection is finished, so that the detection speed and the working efficiency of multiple samples are improved;
(3) the automatic cleaning device for solution electric signal measurement provided by the invention has the advantages of high detection sensitivity, long service life and low maintenance frequency;
(4) according to the solution electric signal measuring system provided by the invention, the heat preservation liquid is heated circularly, and the cooling regulator is arranged in a matching manner, so that the temperature control effect is good, and the stability of the detection environment can be ensured.
Drawings
FIG. 1 is a schematic view showing the overall structure of an automatic cleaning apparatus for solution electrical signal measurement according to the present invention;
FIG. 2 is a schematic view of the construction of the housing of the present invention;
fig. 3 shows a schematic structural view of the frame body of the present invention;
fig. 4 is a schematic view showing the overall structure of the solution electric signal measuring system according to the present invention.
The reference numbers illustrate:
1-a reaction vessel;
11-lumen;
111-a waste liquid outlet;
12-outer jacket;
121-insulation liquid inlet;
122-insulating liquid outlet;
2-a cover body;
21-a frame body;
211-plug of sample addition well;
22-frame sleeve;
221-a through hole;
23-a liquid storage cavity;
24-a nozzle;
25-a jet channel;
3-a stirring component;
31-a stirrer;
32-stirring upper cover;
33-a lower stirring cavity;
34-a stirring motor;
4-a heating assembly;
41-heating the container;
411 — first interface;
412-a second interface;
42-a heater;
5-a first driving member;
6-a second driving member;
7-a third drive member;
8-liquid line;
9-cooling the regulator;
10-a controller.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples. The features and advantages of the present invention will become more apparent from the description. In which, although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
In a first aspect of the present invention, an automatic cleaning apparatus for solution electrical signal measurement is provided, as shown in fig. 1 to 3, the apparatus includes a reaction assembly and a stirring assembly, wherein the reaction assembly includes a reaction container 1 and a cover body 2, and a stirring assembly 3 is disposed at a bottom of the reaction container 1 to stir a liquid in the reaction container 1.
According to a preferred embodiment of the present invention, as shown in FIG. 1, the reaction vessel 1 comprises an inner cavity 11 and an outer jacket 12, the inner cavity 11 is used for containing a detection liquid,
the inner cavity 11 is not communicated with the outer jacket 12.
In a further preferred embodiment, the cavity 11 is in the shape of a circular truncated cone, and the diameter of the bottom surface of the cavity 11 is smaller than that of the top surface.
In a further preferred embodiment, the diameter of the bottom surface of the inner cavity 11 is 10 to 20mm, and the volume of the inner cavity 11 is 15 to 30 mL.
The automatic cleaning device is used for measuring solution electric signals, and is a micro-reaction device for shortening the detection time of the solution electric signals, and the volume of an inner cavity of the reaction container is preferably set to be 15-30 mL.
According to a preferred embodiment of the present invention, a waste outlet 111 is connected to the bottom of the inner chamber 11 to allow the discharge of the solution after the detection.
In a further preferred embodiment, a driving device is connected to the outside of the waste liquid outlet 111 to provide a driving force for discharging waste liquid.
According to a preferred embodiment of the present invention, the outer jacket 12 is disposed outside the inner cavity 11 to support the inner cavity 11 to be stably placed.
In a further preferred embodiment, the outer jacket 12 is arranged to cooperate with the inner chamber 11 such that the reaction vessel 1 is cylindrical.
Wherein, the reaction vessel 1 composed of the outer layer jacket 12 and the inner cavity 11 forms a cylindrical double-layer cup type.
In a further preferred embodiment, a heat-insulating liquid is contained in the outer jacket 12 to ensure the temperature required for the solution measurement.
In the process of water quality detection, the detection is often carried out under a constant temperature condition, and in the invention, the outer layer jacket 12 is preferably arranged outside the inner cavity 11, so that the solution in the inner cavity 11 can be insulated while the stability of the inner cavity is ensured, the stability of reaction is ensured, and the detection precision is improved.
According to a preferred embodiment of the present invention, an inlet 121 for insulating liquid is provided at the top end of the outer jacket 12, so that the insulating liquid enters the outer jacket 12, and/or
A heat preservation liquid outlet 122 is arranged at the bottom end of the outer layer jacket 12, so that the heat preservation liquid is discharged out of the outer layer jacket 12.
In a further preferred embodiment, the insulating liquid inlet 121 and the insulating liquid outlet 122 form a circulation path on the outside, so that the insulating liquid can maintain a constant temperature under the action of the external regulating device.
In a further preferred embodiment, the external regulating means comprises heating means and cooling means to regulate the temperature of the insulating liquid in real time.
Wherein, the heat preservation liquid is heated to the required temperature under the action of the heating device, and when the temperature is overhigh, the temperature is reduced to the required temperature through the cooling device.
According to a preferred embodiment of the present invention, as shown in fig. 1 to 3, the cover body 2 is disposed at the top end of the reaction vessel 1, and includes a frame body 21 and a frame sleeve 22.
In a further preferred embodiment, a plurality of through holes are provided on the frame body 21 to place the detecting assembly and add the detecting liquid.
The frame body 21 is preferably an electrode frame, and the detection assembly is preferably a reaction electrode.
The inventor finds that in the process of checking the water quality biotoxicity, the bioelectricity active bacteria are utilized to degrade organic matters and generate current, and the condition of toxic substances in a sample solution is detected through a feedback current signal, so that the device has the advantages of wide range of water quality toxicity detection, high sensitivity and high operation stability.
In the invention, the reaction electrode comprises a working electrode, a counter electrode and a reference electrode, the head of the working electrode is coated with a bacterial layer, living bacteria generate weak current in the metabolic process, and the working electrode and the counter electrode form a loop in a sample solution and can measure the current generated by the bacteria. When the activity of the bacteria is reduced by toxic substances in the water, the current generated by the metabolic process of the bacteria is correspondingly changed.
Wherein, a muA-level current detection device is connected outside the reaction electrode so as to accurately measure the change of the current.
In a further preferred embodiment, a sample application hole is provided on the frame body 21, for adding a detection solution,
the sample addition hole is provided with a sample addition hole plug 211.
According to a preferred embodiment of the present invention, as shown in fig. 1 to 3, the frame body 21 is disposed at a central position of the frame sleeve 22, a groove is provided at a lower portion of the frame body 21,
a liquid storage cavity 23 is formed between the frame body 21 and the frame sleeve 22 to store cleaning agent,
preferably, the reservoir 23 is annular.
The inner surface of the frame sleeve 22 is smooth, a groove is formed in the part where the frame body 21 is connected with the frame sleeve in a matching mode, and the groove and the smooth inner surface of the frame sleeve 22 are matched to form an annular liquid storage cavity 23.
In a further preferred embodiment, a nozzle 24 is arranged at the bottom of the groove of the frame body 21, and the nozzle 24 is a through hole to spray the cleaning agent in the liquid storage cavity 23 into the inner cavity 11.
In a further preferred embodiment, said spout 24 has a plurality of spouts, which are evenly distributed in the circumferential plane of the bottom of the recess.
Preferably, as shown in fig. 1, the spray passage 25 formed at the lower portion of the frame body 21 by the spray nozzle 24 has a certain inclination, and the inclination of the spray passage 25 is consistent with the conicity of the circular truncated cone of the inner cavity 11.
Wherein, the cone degree of the circular table refers to the ratio of the difference of the diameters of the upper and lower circles of the circular table to the height of the circular table.
The inventor discovers through research that the inclination of the injection channel is set to be consistent with the taper of the inner cavity, the cleaning agent in the liquid storage cavity can be rapidly sprayed into the inner cavity, the inner wall of the inner cavity and the reaction electrode can be effectively washed, and the effect is good.
According to a preferred embodiment of the present invention, as shown in fig. 1 and 2, a through hole 221 is provided on the frame sleeve 22 for allowing the cleaning agent to enter the reservoir 23.
In a further preferred embodiment, a drive assembly is connected outside the through-hole 221 for the entry of cleaning agent.
Wherein, according to the needs of in-service use, can use the different cleaner of clean dynamics to wash the inner chamber, wash with water and deionized water after finishing to prevent that impurity composition from influencing the testing result.
In a further preferred embodiment, after the cleaning agent is added into the inner cavity 11, the inner wall and the electrode are allowed to stand for a certain time, so that the inner wall and the electrode are sufficiently soaked and cleaned in the cleaning agent.
The inventor finds that the detection liquid on the inner wall of the inner cavity and the electrode cannot be completely washed away in the process of spraying the cleaning agent into the inner cavity along the spraying channel, and the cleaning agent needs to be kept still for soaking so as to fully remove the detection liquid.
Wherein, at water quality testing's process and abluent in-process, wash through spouting into the cleaner to the inner chamber, wash the back by waste liquid mouth discharge inner chamber that finishes, realized automatic washing, greatly improved the efficiency of software testing of device.
According to a preferred embodiment of the present invention, the stirring component 3 comprises a stirrer 31 and a stirring assembly, wherein the stirrer 31 is disposed at the bottom of the inner cavity 11 to stir the detection liquid uniformly.
In a more preferred embodiment, the length of the stirrer 31 is 5 to 8mm so as to sufficiently stir the detection solution.
Wherein, the stirrer 31 is a magnetic stirrer and is rotated and stirred under the action of the stirring assembly.
In the present invention, the stirrer is in an open state during the processes of stirring and mixing the detection solution, discharging the detection solution, stirring and mixing the cleaning agent, and discharging the cleaning agent, so as to prevent the stirrer from blocking the waste liquid outlet 111 due to the flow of the solution.
According to a preferred embodiment of the present invention, the stirring assembly includes an upper stirring cover 32 and a lower stirring cover 33, which are sequentially arranged from top to bottom, the upper stirring cover 32 and the lower stirring cover 33 are connected in a matching manner to form a cavity,
and a stirring motor 34 is arranged in the cavity and used for providing power for the stirrer 31.
The automatic cleaning device for measuring the solution electric signal is short in cleaning time, and can clean the inner cavity and the electrode within 1min, so that the concentration of residues is less than 5 ppm.
In a second aspect of the present invention, a solution electrical signal measuring system is provided, the system includes the above automatic cleaning device for solution electrical signal measurement, as shown in fig. 4, the system further includes a heating assembly 4 for heating the insulating liquid, a first driving member 5 for driving the insulating liquid to discharge, a second driving member 6 for driving the waste liquid to discharge, and a third driving member 7 for driving the cleaning agent to enter.
According to a preferred embodiment of the present invention, the heating assembly comprises a heating vessel 41 and a heater 42 disposed outside the heating vessel 41, wherein a heat preservation liquid is disposed inside the heating vessel 41, and the heat preservation liquid is heated to a set temperature by the heater 42 to be transferred to the outer jacket 12 of the reaction vessel 1 for heat preservation.
The heat preservation liquid is a medium with large specific heat capacity, so that the temperature fluctuation is small when the heat preservation liquid is influenced by the outside.
In a further preferred embodiment, the heating container 41 is a heating cup, made of a high temperature resistant material, and/or
The heater 42 is a heating coil.
In a further preferred embodiment, a first connector 411 and a second connector 412 are arranged at the bottom of the heating container 41, and the first connector 411 and the second connector 412 are both connected with the reaction container 1 through a liquid pipeline 8.
The insulating liquid inlet 121 is connected to the first connector 411, and the insulating liquid outlet 122 is connected to the second connector 412, so as to form a circulation path.
Preferably, a cooling regulator 9 is further disposed between the first interface 411 and the reaction vessel, and is activated when the temperature is too high to regulate the temperature of the heat-preserving liquid.
Here, when the temperature of the heat insulating liquid in the heating container 41 is the set temperature, the cooling regulator 9 does not operate.
According to a preferred embodiment of the present invention, the first driving member 5 is disposed between the insulating liquid outlet 122 and the second connector 412, so that the insulating liquid is returned to the heating container 41.
In a further preferred embodiment, said first drive member 5 is a peristaltic pump to prevent contact with the incubation liquid.
The peristaltic pump pumps fluid by alternately squeezing and releasing the elastic conveying hose of the pump, so that the peristaltic pump is prevented from contacting with corrosive or toxic solution, the peristaltic pump can be effectively prevented from being corroded, and the service life of the peristaltic pump is prolonged.
In a further preferred embodiment, the second driving member 6 is disposed outside the waste liquid outlet 111 so that the detected detection liquid is discharged to the waste liquid pool.
Wherein the second drive member 6 is also a peristaltic pump to prevent contact with the test fluid.
Preferably, the third drive 7 is a water pump.
After the detection is finished, the detection liquid is discharged from the waste liquid outlet, the cleaning function is started, so that the cleaning agent flows through the water pump, enters the cover body 2, is sprayed into the inner cavity 11 of the reaction vessel 1, cleans the inner cavity and the electrode, and is discharged from the waste liquid outlet 111 after the cleaning is finished.
According to a preferred embodiment of the present invention, the automatic cleaning device for solution electrical signal measurement, the heating assembly 4, the first driving member 5, the second driving member 6 and the cooling regulator 9 are all connected to a controller 10 through control lines for switching between different operations.
Wherein, the controller 1 is composed of a computer and a circuit board.
In a third aspect of the present invention, there is provided a method for measuring solution electric signals, preferably using the above-mentioned solution electric signal measuring system, as shown in fig. 1 to 4, the method comprising the steps of:
1) installing a stirring component 3, and then starting a heating component 4 and a first driving component 5 to enable the heat preservation liquid heated to the preset temperature to enter an outer layer jacket 12 of the reaction vessel 1 and form a circulation passage;
2) the frame body 21 and the frame sleeve 22 are connected in a matching way, a reaction electrode is inserted into the through hole of the frame body 21, and then the connected frame body 21 and the frame sleeve 22 are installed at the top end of the reaction vessel 1;
3) adding detection liquid into a sample adding hole in the frame body 21, and then starting the stirring assembly to perform measurement;
in which the change in output current over a certain period of time is measured.
4) After the determination, the second driving part 6 is opened, the detection liquid is discharged, then the second driving part 6 is closed, the third driving part 7 is opened, the cleaning agent is injected for cleaning, and after the cleaning is finished, the third driving part 7 is closed, the second driving part 6 is opened, and the cleaning agent is discharged.
The cleaning is generally carried out for 3-5 times, the specific times and the type of the cleaning agent are determined according to actual needs, for example, the cleaning agent can be cleaned for 3 times, and the cleaning agent for three times is sequentially detergent, water and deionized water so as to prevent impurities from influencing the measurement result.
Examples
Example 1
The toxic simulated water sample (solution system containing copper ions, pyrethroid pesticides, herbicides, PAH and protein inhibitors respectively) is determined by adopting the determination system shown in figure 4, and the method comprises the following steps:
1) putting a stirrer into the bottom of an inner cavity of a heating cup, and then starting a heating ring and a peristaltic pump connected with the heating ring to ensure that water heated to 37 ℃ enters an outer layer jacket of the reaction vessel and a circulation passage is formed;
2) the frame body and the frame sleeve are connected in a matching way, a working electrode (the head part of the working electrode is coated with escherichia coli), a reference electrode and a counter electrode are inserted into the through hole of the frame body, and then the connected frame body and the frame sleeve are installed at the top end of the reaction vessel;
3) adding the toxic water sample into a sample adding hole on a frame body, then starting a stirring assembly, measuring the change of output current within 15min, wherein the measuring frequency is 2 times/second, and calculating the inhibition rate of the toxic substances to living bacteria through the change of the current;
4) after the determination is finished, a peristaltic pump connected with a waste liquid outlet is started to discharge a toxic water sample; then the peristaltic pump is closed, the water pump is started, and washing agent is injected for cleaning; after the cleaning is finished, the water pump is closed, the peristaltic pump connected with the waste liquid outlet is started, and the washing detergent is discharged;
and (5) repeating the step 4) twice, wherein the types of the cleaning agents are water and deionized water respectively.
The detection is carried out by using the measuring system disclosed by the invention, the time for automatically cleaning the discharged liquid after the detection is finished and the residual concentration of the detection liquid in the inner cavity after the cleaning are detected, and the results are shown in table 1:
TABLE 1 automatic cleaning and draining time and residual concentration of detection liquid
| Solution system | Time of cleaning | Residual concentration |
| Copper ion | 30 seconds | 5ppm |
| Pyrethroid pesticide | 60 seconds | 5ppm |
| Herbicide | 60 seconds | 5ppm |
| PAH | 60 seconds | 5ppm |
| Protein inhibitors | 60 seconds | 1ppm |
As can be seen from Table 1, the time for automatic cleaning and draining is at least 30s and at most 60s when the system provided by the invention is used for detection and analysis; the residual concentration of the liquid to be detected after automatic cleaning is at least 1ppm and at most 5 ppm. By utilizing the automatic cleaning device provided by the invention, the instrument cleaning time is greatly shortened, and the cleaning quality is higher.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on operational states of the present invention, and are only used for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The present invention has been described above in connection with preferred embodiments, but these embodiments are merely exemplary and merely illustrative. On the basis of the above, the invention can be subjected to various substitutions and modifications, and the substitutions and the modifications are all within the protection scope of the invention.
Claims (8)
1. The automatic cleaning device for the solution electric signal measurement is characterized by comprising a reaction assembly and a stirring assembly, wherein the reaction assembly comprises a reaction container (1) and a cover body (2), the stirring assembly (3) is arranged at the bottom of the reaction container (1) to stir liquid in the reaction container (1),
the reaction vessel (1) comprises an inner cavity (11) and an outer layer jacket (12), the inner cavity (11) is used for containing detection liquid,
the cover body (2) is arranged at the top end of the reaction vessel (1) in a matching way and comprises a frame body (21) and a frame sleeve (22) which are connected in a matching way,
a plurality of through holes are arranged on the frame body (21) to place the detection components and add detection liquid,
the frame body (21) is arranged at the center of the frame sleeve (22), the lower part of the frame body (21) is provided with a groove,
a liquid storage cavity (23) is formed between the frame body (21) and the frame sleeve (22) to store cleaning agents;
a through hole (221) is formed in the frame sleeve (22) for allowing a cleaning agent to enter the liquid storage cavity (23);
the bottom of the groove of the frame body (21) is provided with a nozzle (24), the nozzle (24) is a through hole so as to spray a cleaning agent in the liquid storage cavity (23) into the inner cavity (11).
2. The apparatus of claim 1,
the inner cavity (11) is not communicated with the outer layer jacket (12).
3. The device according to claim 2, characterized in that the cavity (11) is frustoconical, the bottom surface of the cavity (11) having a smaller diameter than the top surface.
4. Device according to claim 2, characterized in that the outer jacket (12) is arranged outside the inner chamber (11) to support the inner chamber (11) in a stable position and/or
The outer layer jacket (12) is filled with heat preservation liquid to ensure that the detection liquid in the inner cavity reaches the required detection temperature.
5. Device according to claim 2, characterized in that an inlet (121) for a thermal insulation liquid is provided at the top end of the outer jacket (12) so that the thermal insulation liquid enters the outer jacket (12), and/or
And a heat preservation liquid outlet (122) is arranged at the bottom end of the outer layer jacket (12) so that the heat preservation liquid is discharged out of the outer layer jacket (12).
6. A solution electric signal measuring system comprising the automatic cleaning device for solution electric signal measurement as claimed in one of claims 1 to 5, wherein the system further comprises a heating assembly (4) for heating the insulating liquid, a first driving member (5) for driving the insulating liquid to be discharged, a second driving member (6) for driving the waste liquid to be discharged, and a third driving member (7) for driving the cleaning agent to enter.
7. System according to claim 6, characterized in that a cooling regulator (9) is provided between the heating assembly (4) and the automatic cleaning device for the electrical signal measurement of the solution, activated when the temperature of the insulating liquid is too high, to regulate the temperature of the insulating liquid.
8. A method for measuring an electric signal of a solution using the electric signal measuring system for a solution according to claim 6 or 7, comprising the steps of:
1) installing a stirring assembly (3), then starting a heating assembly (4) and a first driving member (5) to enable the heat preservation liquid heated to the preset temperature to enter an outer layer jacket (12) of the reaction vessel (1) and form a circulation passage;
2) the method comprises the following steps of (1) connecting a frame body (21) and a frame sleeve (22) in a matched mode, inserting a reaction electrode into a through hole of the frame body (21), and then installing the connected frame body (21) and the frame sleeve (22) to the top end of a reaction container (1);
3) adding detection liquid into a sample adding hole on a frame body (21), and then starting a stirring assembly for measurement;
4) after the measurement is finished, the second driving piece (6) is started to discharge the detection liquid; then the second driving part (6) is closed, the third driving part (7) is opened, and cleaning agent is injected for cleaning; after the cleaning is finished, the third driving part (7) is closed, the second driving part (6) is opened, and the cleaning agent is discharged.
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| JP2001041963A (en) * | 1999-07-30 | 2001-02-16 | Olympus Optical Co Ltd | Autoanalyzer |
| CN101644693A (en) * | 2009-08-31 | 2010-02-10 | 宇星科技发展(深圳)有限公司 | BDD electrode-based COD rapid determination device |
| CN101907599A (en) * | 2010-07-21 | 2010-12-08 | 宇星科技发展(深圳)有限公司 | All-in-one heavy metal online analyzer |
| CN103076380A (en) * | 2012-12-25 | 2013-05-01 | 广东电网公司电力科学研究院 | Electrochemical monitoring instrument for monitoring furfural content in transformer oil by using interfacial electrochemical reaction |
| CN203786993U (en) * | 2014-04-24 | 2014-08-20 | 重庆大学 | A teaching experiment device for chemical oscillatory reaction |
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