CN210448127U - Automatic tritium extraction device for environmental monitoring - Google Patents
Automatic tritium extraction device for environmental monitoring Download PDFInfo
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- CN210448127U CN210448127U CN201920861494.0U CN201920861494U CN210448127U CN 210448127 U CN210448127 U CN 210448127U CN 201920861494 U CN201920861494 U CN 201920861494U CN 210448127 U CN210448127 U CN 210448127U
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Abstract
The utility model discloses an automatic tritium extraction device for environmental monitoring, which comprises a distillation chamber, a temperature control unit, a condensation unit and a condensation auxiliary unit; the distillation chamber is connected with a first pump body, a second pump body and a third pump body; the conveying pipeline comprises a first vertical pipeline, a second vertical pipeline and an inclined pipeline, and the inclined pipeline inclines upwards from the distillation chamber to the direction of the condensing unit. The utility model discloses a full-automatic distillation concentration function of environment tritium appearance, the self-cleaning function of distillation chamber, the automatic accurate interpolation of the required reagent of distillation can accomplish processes such as full-automatic collection of environment tritium, preparation, distillation purification, measurement and analysis, has reduced artificial intervention, and the monitoring result is more accurate, has also practiced thrift the cost of labor.
Description
Technical Field
The utility model belongs to the technical field of environmental protection and automation equipment, especially, relate to an automatic extraction element of tritium for environmental monitoring.
Background
Tritium is a radioactive substance with a half-life of 12.6 years. Most of the tritium in the air eventually forms tritium water-water vapor, which enters the water circulation together with ordinary water, thus easily exposing human beings to radiation. In the work of environmental protection, the content of tritium in water and air is monitored, and is generally regarded internationally, and in the existing tritium monitoring method, an indirect measurement method is obviously superior to other methods.
The current distillation and concentration modes mainly comprise semi-automatic distillation and manual distillation, wherein the semi-automatic distillation can realize single sample automatic distillation, and cleaning after distillation is finished manually; manual distillation is a traditional laboratory operation mode, and all operations are finished manually; the above 2 distillation methods have the following defects: 1. when the concentration of the tritium sample is higher, certain radiation hazard is caused to sample preparation personnel; 2. quantitative sample preparation has high requirements on the operation skills of experimenters, and is easy to introduce artificial operation errors; 3. the experiment operation time is long, and the force value of an occupied person is needed to be kept; 4. as the cleaning process needs to be completed manually, the process can not be completely automated, and the online monitoring of the air tritium can not be realized.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides a realize the automatic distillation of tritium appearance, the automatic cleaning process of distillation chamber practices thrift the human cost's the automatic extraction element of tritium that is used for environmental monitoring.
The utility model provides a technical scheme that its technical problem adopted is: an automatic tritium extraction device for environmental monitoring comprises a distillation chamber, a temperature control unit for heating the distillation chamber, a condensation unit connected with the distillation chamber through a conveying pipeline, and a condensation auxiliary unit for circularly conveying a condensing agent into the condensation unit; the distillation chamber is connected with a first pump body used for conveying a medicament into the distillation chamber, a second pump body used for conveying a sample into the distillation chamber, and a third pump body used for communicating the distillation chamber with the outside; the conveying pipeline comprises a first vertical pipeline connected with the top of the distillation chamber, a second vertical pipeline connected with the top of the condensing unit and an inclined pipeline obliquely connected between the first vertical pipeline and the second vertical pipeline, and the inclined pipeline inclines upwards from the distillation chamber to the condensing unit.
Furthermore, the first vertical pipeline is provided with a first spherical bubble with an increased inner diameter, and the second vertical pipeline is provided with a second spherical bubble with an increased inner diameter.
Further, the first pump body is connected to the upper part of the distillation chamber, the second pump body is connected to the upper part of the distillation chamber, the third pump body is connected to the bottom of the distillation chamber, and the third pump body is used for conveying air into the distillation chamber or discharging a sample in the distillation chamber to the outside.
Furthermore, the distillation chamber main part is cylindrical, and its bottom is the toper, temperature control unit includes the heating plate of cladding in the distillation chamber main part outer wall, and locates the temperature detect switch between heating plate and the distillation chamber outer wall.
Further, the medicament comprises a cleaning agent and a distilling agent.
Further, the condensing unit comprises a condensing agent circulation chamber and a heat exchange spiral pipe located in the condensing agent circulation chamber, and the condensing agent circulation chamber comprises an inlet connected with the second vertical pipeline and an outlet connected with the collecting tank.
Further, the second pump body is connected with a sample groove for containing samples.
Furthermore, the condensation auxiliary unit comprises a cavity for storing the condensing agent, a power device for circularly conveying the condensing agent to the condensing agent circulation chamber, and an upper pipe body and a lower pipe body which are respectively connected with the upper part and the lower part of the condensing agent circulation chamber.
Further, the power device is a peristaltic pump or a diaphragm pump.
Utilize the utility model discloses tritium automatic extraction method who goes on, including following step:
1) cleaning a distillation chamber: selecting a cleaning agent as a medicament, starting a first pump body, pumping a quantitative cleaning agent into a distillation chamber, starting a temperature control unit, heating the distillation chamber to a preset temperature, starting a third pump body, conveying external air into the distillation chamber, and discharging a mixed liquid in the distillation chamber by using the third pump body after disturbance cleaning of the distillation chamber is finished;
2) distilling and rinsing: selecting a distilled reagent as a medicament, starting a second pump body, pumping a quantitative sample into a distillation chamber, starting a first pump body, pumping the quantitative distilled reagent into the distillation chamber, starting a temperature control unit to maintain the temperature of the outer wall of the distillation chamber at a preset temperature, and replacing the collecting tank accumulated with a finished product with an empty collecting tank;
3) and (3) distillation: the reagent is distilled reagent, the second pump body continues to pump the quantitative sample into the distillation chamber, the first pump body is started, the quantitative distilled reagent is pumped into the distillation chamber, the temperature control unit is started to keep the distillation chamber at a preset temperature, and the temperature control unit is closed after the distillation amount reaches the preset value;
4) simultaneous condensation during step 2) and step 3): starting the condensation auxiliary unit, conveying the condensing agent into a condensing agent circulation chamber through the lower pipe body, and refluxing the condensing agent after heat exchange in the condensing agent circulation chamber to the cavity through the upper pipe body;
5) and (3) discharging in a distillation chamber: and the second pump body continues to pump the residual sample in the sample groove into the distillation chamber, and the third pump body is started to discharge the sample in the distillation chamber.
Preferably, the preset temperature in the step 1) and the step 2) is 80-100 ℃, and the preset value of the distillation amount in the step 3) is 500-700 mL.
The utility model has the advantages that: the full-automatic distillation and concentration function of the environmental tritium sample is realized, the automatic cleaning function of the distillation chamber is realized, and the automatic and accurate addition of the reagent required by distillation is realized. The device's realization has filled the blank of this process link of environment tritium analysis full automation distillation purification, can cooperate the tritium analysis appearance to accomplish processes such as environment tritium full-automatic collection, preparation, distillation purification, measurement and analysis, thereby make environment tritium analytic system possess the unmanned ability of overall process, it becomes reality to make environment tritium carry out complete automatic monitoring in the serious region of radiation, and the device is owing to significantly reduced artificial intervention, consequently make the monitoring result more accurate, the cost of labor has also been practiced thrift, the possibility of the relevant human health harm of business has been avoidd greatly.
Drawings
Fig. 1 is a schematic view of the flow structure of the present invention.
Fig. 2 is a schematic view of the temperature control unit and the distillation chamber of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in figures 1 and 2, an automatic tritium extraction device for environmental monitoring comprises a cylindrical main body, a conical distillation chamber 1 at the bottom, a temperature control unit 2 coated on the outer wall of the main body part of the distillation chamber 1 and used for heating the distillation chamber 1, a condensation unit 4, a conveying pipeline 3 with one end connected to the top of the distillation chamber 1 and one end connected to the top of the condensation unit 4, and a condensation auxiliary unit 5 connected with the condensation unit 4 and used for conveying a condensing agent to the inner circulation of the condensation unit 4.
The upper portion of distillation chamber 1 links to each other with a plurality of medicament bottle groups respectively through multichannel pipeline and first pump body 11, and the medicament bottle group can be a plurality of bottles 15 that are equipped with the cleaner, also can be a plurality of bottles 15 that are equipped with distillation reagent, and first pump body 11 chooses for use can accurate regulation and control the miniature high accuracy peristaltic pump that the model of delivery volume is WK 10. The upper part of the distillation chamber 1 is also connected with a sample tank 7 containing a tritium-containing sample to be detected through a pipeline and a second pump body 12, and the second pump body 12 is used for conveying the tritium-containing sample into the distillation chamber 1. The conical bottom of the distillation chamber 1 is provided with a sample discharge port 14, and the sample discharge port 14 is communicated with the outside through a third pump body 13 and can discharge the sample in the distillation chamber 1 to the outside.
As shown in fig. 2, the temperature control unit 2 includes a heating plate 21 covering the outer wall of the main body of the distillation chamber 1, and a temperature control switch 22 disposed between the heating plate 21 and the outer wall of the distillation chamber 1. The heating plate 21 generates heat for supplying heat for the distillation in the distillation chamber 1; the temperature control switch 22 is used for sensing the temperature of the outer wall surface of the distillation chamber 1 in real time, and is used for automatically supplying power to the heating sheet 21 in time when the temperature of the outer wall surface of the distillation chamber 1 is lower than a preset value of 80-100 ℃, heating the distillation chamber 1 when the temperature of the outer wall surface of the distillation chamber 1 is higher than the preset value of 80-100 ℃, automatically closing the heating sheet 21 in time, maintaining the temperature of the distillation chamber 1 at the preset value, ensuring continuous distillation and ensuring the high efficiency of distillation.
The condensing unit 4 comprises a hollow condensing agent circulation chamber 41 and a heat exchange spiral tube 42 located in the condensing agent circulation chamber 41, tritium sample steam is used for circulating in the heat exchange spiral tube 42, a condensing agent is filled in the condensing agent circulation chamber 41, deionized distilled water can be selected as the condensing agent, the condensing agent cools and condenses the tritium sample steam in the heat exchange spiral tube 42 into a liquid state, an inlet 411 communicated with the conveying pipeline 3 is formed at the top of the condensing agent circulation chamber 41, an outlet 412 communicated with the environment tritium sample collecting tank 6 is formed at the bottom of the condensing agent circulation chamber, and airtight containers are formed at the rest parts and are used for circulating the condensing agent.
The condensation auxiliary unit 5 is used for controlling the condensation process of the condensation unit 4, and comprises a cavity 51 for storing condensing agent, an upper pipe body 52 for communicating the cavity 51 with the upper part of the condensing agent circulation chamber 41, a lower pipe body 53 for communicating the cavity 51 with the lower part of the condensing agent circulation chamber 41, and a power device for driving the condensing agent in the cavity 51 to be conveyed into the condensing agent circulation chamber 41 through the lower pipe body 53 and driving the condensing agent in the condensing agent circulation chamber 41 to be conveyed into the cavity 51 through the upper pipe body 52, wherein the power device is a peristaltic pump or a diaphragm pump, and the power device enables the condensing agent to circularly flow between the condensing agent circulation chamber 41 and the cavity 51.
The conveying pipeline 3 for guiding the distillation generated in the distillation chamber 1 into the condensing unit 4 comprises a first vertical pipeline 31 connected with the top of the distillation chamber 1, a second vertical pipeline 32 connected with the top of the condensing agent circulation chamber 41, and an inclined pipeline 33 obliquely connected between the first vertical pipeline 31 and the second vertical pipeline 32, wherein the top of the distillation chamber 1 and the top of the condensing agent circulation chamber 41 are positioned on the same horizontal plane, the inclined pipeline 33 is inclined upwards from the distillation chamber 1 to the condensing unit 4, namely the length of the second vertical pipeline 32 is greater than that of the first vertical pipeline 31.
Form the increase of internal diameter on first vertical pipeline 31 and be globular first spherical tympanic bulla 311, first spherical tympanic bulla 311 is close to the top setting of distillation chamber 1, but and still a short segment distance between the top of distillation chamber 1, thereby steam is from distillation chamber 1 top output, first vertical pipeline 31 through the internal diameter sharply reduces, form the pressure-fired effect, get into the first spherical tympanic bulla 311 that the internal diameter enlarges again, form the pressure-fired effect, the sample liquid drop of avoiding steam to carry gets into condensing unit 4 through pipeline 3, guarantee the accuracy of environment tritium appearance monitoring.
The second spherical bubble 321 with the increased inner diameter and the spherical shape is formed on the second vertical pipeline 32, the second spherical bubble 321 is arranged close to the top of the condensing agent circulation chamber 41, but a small distance is reserved between the second spherical bubble 321 and the top of the condensing agent circulation chamber 41, so that when steam enters the condensing agent circulation chamber 41, the steam firstly passes through the second spherical bubble 321 with the rapidly increased inner diameter to achieve a pre-condensation effect, and then enters the condensing agent circulation chamber 41 through the second vertical pipeline 32 with the reduced inner diameter, and the condensation efficiency is improved.
After tritium automatic extraction device starts, the self-cleaning of distillation chamber 1 is carried out earlier, after the washing is accomplished, environment tritium sample and distillation reagent get into the distillation chamber, start accuse temperature unit 2 and carry out controllable distillation, steam gets into steam conveying pipeline 3, the first spherical tympanic bulla 311 structure influence of 31 port departments of a part of them first vertical pipeline and the slope pipeline 33 slope upward the structure influence, condense and flow back distillation chamber 1, distill again, another part steam gets into condensing unit 4 through steam conveying pipeline 3, receive structure and temperature influence in the heat exchange helix tube 42 of condensing agent circulation cavity 41, a large amount of condensation, flow into environment tritium purification finished product collecting vat 6 under the action of gravity. The heat exchange spiral tube 42 exchanges heat between the steam and the condensing agent, the steam temperature decreases, and the condensing agent temperature increases, the condensing agent with the increased temperature returns to the cavity 51 through the upper tube 52, and the condensing agent with the low temperature in the cavity 51 enters the condensing agent circulation chamber 41 through the lower tube 53, thereby ensuring the condensing capacity of the condensing unit 4.
An automatic tritium extraction method for environmental monitoring comprises the following steps:
1) cleaning a distillation chamber: selecting a cleaning agent as a medicament, opening a first pump body, accurately controlling the amount of the cleaning agent pumped into the distillation chamber, opening a temperature control unit, heating the distillation chamber 1 to the surface temperature of the outer wall of the distillation chamber to 80-100 ℃, opening a third pump body, conveying outside air into the distillation chamber 1, performing air disturbance on the cleaning agent, and achieving the purpose of cleaning the distillation chamber 1, wherein the second pump body and the condensation unit are in a closed state; after a period of time, the disturbance cleaning of the distillation chamber is completed, then the third pump body is opened, and the mixed liquid in the distillation chamber 1 is reversely discharged out of the distillation chamber 1 through the sample discharge port 14;
2) distilling and rinsing: replacing the cleaning agent with a distillation reagent, opening a second pump body, pumping a quantitative sample, namely 1/3 sample in the sample groove 7 into the distillation chamber 1, opening a first pump body, pumping quantitative distillation reagents in proportion to 1/3 sample into the distillation chamber 1 from different bottle bodies respectively, mixing the sample and the distillation reagents, continuously opening a temperature control unit, and maintaining the temperature of the outer wall surface of the distillation chamber 1 at 80-100 ℃;
3) and (3) distillation: replacing the collecting tanks accumulated with the environmental tritium finished products in the step 2) with empty collecting tanks, continuously pumping 1/3 samples in the sample tank 7 into the distillation chamber 1 by using the second pump body, opening the first pump body, pumping quantitative distillation reagents in proportion to 1/3 samples into the distillation chamber 1 from different bottle bodies respectively, continuously opening the temperature control unit, maintaining the temperature of the outer wall surface of the distillation chamber 1 at 80-100 ℃, and closing the temperature control unit when the distillation amount reaches a preset value of 500 plus 700 mL;
4) while step 2) and step 3) are carried out, the condensation is carried out simultaneously: starting the condensation auxiliary unit, conveying the condensing agent in the cavity into the condensing agent circulation chamber 41 through the lower pipe body 53 by the power device, and simultaneously recovering the condensing agent which completes heat exchange in the condensing agent circulation chamber 41 into the cavity 51 through the upper pipe body along the arrow direction;
5) and (3) discharging in a distillation chamber: the second pump body continuously pumps the 1/3 sample remained in the sample groove 7 into the distillation chamber 1, the first pump body is closed, the third pump body is opened, and the sample in the distillation chamber 1 is completely discharged out of the distillation chamber 1 through the sample discharge port 14;
6) monitoring: and (3) matching the tritium finished product in the liquid environment in the collecting tank 6 with a tritium analyzer to finish measurement and analysis.
The above detailed description is provided for illustrative purposes, and is not intended to limit the present invention, and any modifications and variations of the present invention are within the spirit and scope of the following claims.
Claims (9)
1. The utility model provides a tritium automatic extraction device for environmental monitoring which characterized in that: comprises a distillation chamber (1), a temperature control unit (2) for heating the distillation chamber (1), a condensation unit (4) connected with the distillation chamber (1) through a conveying pipeline (3), and a condensation auxiliary unit (5) for circularly conveying a condensing agent into the condensation unit (4); the distillation chamber (1) is connected with a first pump body (11) used for conveying a medicament into the distillation chamber (1), a second pump body (12) used for conveying a sample into the distillation chamber (1), and a third pump body (13) used for communicating the distillation chamber (1) with the outside; the conveying pipeline (3) comprises a first vertical pipeline (31) connected with the top of the distillation chamber (1), a second vertical pipeline (32) connected with the top of the condensing unit (4), and an inclined pipeline (33) obliquely connected between the first vertical pipeline (31) and the second vertical pipeline (32), wherein the inclined pipeline (33) inclines upwards from the distillation chamber (1) to the condensing unit (4).
2. An automatic tritium extraction device for environmental monitoring according to claim 1, characterized in that: the first vertical pipeline (31) is provided with a first spherical bubble (311) with an increased inner diameter, and the second vertical pipeline (32) is provided with a second spherical bubble (321) with an increased inner diameter.
3. An automatic tritium extraction device for environmental monitoring according to claim 1, characterized in that: the first pump body (11) is connected to the upper part of the distillation chamber (1), the second pump body (12) is connected to the upper part of the distillation chamber (1), the third pump body (13) is connected to the bottom of the distillation chamber (1), and the third pump body (13) is used for conveying air into the distillation chamber (1) or discharging a sample in the distillation chamber (1) to the outside.
4. An automatic tritium extraction device for environmental monitoring according to claim 1, characterized in that: the distillation chamber (1) main part is cylindrical, and its bottom is the toper, temperature control unit (2) are including cladding in distillation chamber (1) main part outer wall heating plate (21) to and locate temperature detect switch (22) between heating plate (21) and distillation chamber (1) outer wall.
5. An automatic tritium extraction device for environmental monitoring according to claim 1, characterized in that: the medicament comprises a cleaning agent and a distilling agent.
6. An automatic tritium extraction device for environmental monitoring according to claim 1, characterized in that: the condensing unit (4) comprises a condensing agent circulation chamber (41) and a heat exchange spiral pipe (42) positioned in the condensing agent circulation chamber (41), wherein the condensing agent circulation chamber (41) comprises an inlet (411) connected with the second vertical pipeline (32) and an outlet (412) connected with the collecting tank (6).
7. An automatic tritium extraction device for environmental monitoring according to claim 1, characterized in that: the second pump body (12) is connected with a sample groove (7) for containing a sample.
8. An automatic tritium extraction device for environmental monitoring according to claim 1, characterized in that: the condensation auxiliary unit (5) comprises a cavity (51) for storing condensing agent, a power device for circularly conveying the condensing agent to the condensing agent circulation chamber (41), and an upper pipe body (52) and a lower pipe body (53) which are respectively connected with the upper part and the lower part of the condensing agent circulation chamber (41).
9. An automatic tritium extraction device for environmental monitoring according to claim 8, characterized in that: the power device is a peristaltic pump or a diaphragm pump.
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| CN201920861494.0U CN210448127U (en) | 2019-06-10 | 2019-06-10 | Automatic tritium extraction device for environmental monitoring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180199A (en) * | 2019-06-10 | 2019-08-30 | 浙江恒达仪器仪表股份有限公司 | A kind of tritium automatic extracting device and method for environmental monitoring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180199A (en) * | 2019-06-10 | 2019-08-30 | 浙江恒达仪器仪表股份有限公司 | A kind of tritium automatic extracting device and method for environmental monitoring |
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