A device for monitoring pollutants in soil

Abstract

The present invention discloses a device for monitoring pollutants in soil in the technical field of pollutant monitoring, comprising a shell, a focusing component for gathering light is fixedly connected to the top of the shell, a bottom plate is fixedly connected to the bottom of the shell, and a plurality of water outlets are opened on the bottom plate; a recovery rod is fixedly connected to the center of the shell, and a plurality of bimetal plates arranged in a ring are arranged outside the recovery rod, and water bags are fixedly connected to the sides of the bimetal plates close to the bottom plate, respectively, and the water bags are connected to connecting pipes, the connecting pipes are located in the shell, and the water bags are connected to the water outlets through the connecting pipes; a plurality of collection bags for collecting condensate on the surface of the water bags are also fixedly connected to the inner wall of the shell; a first temperature sensor for measuring real-time temperature data is also arranged in the water bag, a first solenoid valve is also connected in the connecting pipe, and the first temperature sensor and the first solenoid valve are electrically connected to a control panel; so that the water bag can automatically sample the pollutants in the soil separately, so as to facilitate the subsequent determination of the types of pollutants in the soil.

Description

Technical Field

[0001] The invention belongs to the technical field of pollutant monitoring, and in particular relates to a device for monitoring pollutants in soil. Background Art

[0002] In the chemical industry, metal smelting industry, petroleum processing and other industries, organic compounds are used as factory processing raw materials, by-products or final products in the production process, which pollute the environment. The possible presence of organic pollutants and heavy metal compound pollution in the soil will greatly affect the soil environmental quality and even threaten the safety of groundwater, so active remediation work needs to be carried out.

[0003] During the soil remediation process, it is necessary to have a comprehensive understanding of the pollution status, sources, multi-media migration and transformation mechanisms, site remediation status and biological toxicity effects of pollutants in the soil in order to further carry out pollutant control and provide new research ideas for environmental remediation.

[0004] Due to the complexity of soil pollutants, there may be volatile pollutants, emerging pollutants and new pollutants. These volatile pollutants on the soil surface have potential hazards to the environment and human health. Among them, volatile pollutants can enter the human body through breathing, food chain and other pathways, causing damage to the human body. New pollutants (emerging pollutants and new pollutants) are toxic and harmful chemicals with characteristics such as biological toxicity, environmental persistence and bioaccumulation. Environmental emissions may exist throughout the entire process of production, processing and consumption. Even if their concentrations in the environment are very low, they will cause considerable harm to organisms and humans after entering the food chain. At the same time, these pollutants will also pollute the atmosphere, water bodies and other environments, and destroy the ecological balance. Therefore, in the process of soil pollution monitoring, it is necessary to strengthen the collection of different pollutants. Summary of the invention

[0005] The purpose of the present invention is to provide a device for monitoring pollutants in soil, which can automatically sample the pollutants in the soil separately to facilitate the subsequent determination of the types of pollutants in the soil.

[0006] In order to achieve the above object, the technical solution of the present invention is as follows:

[0007] A device for monitoring pollutants in soil comprises a shell, a plurality of focusing components for focusing light are fixedly connected to the top of the shell, a bottom plate is fixedly connected to the bottom of the shell, and a plurality of water outlets are opened on the bottom plate;

[0008] A recovery rod is fixedly connected at the center of the shell, and a plurality of bimetal plates arranged in a ring are arranged outside the recovery rod. Water bags are fixedly connected to the sides of the bimetal plates close to the bottom plate. The water bags are connected to connecting pipes, which are located inside the shell, and the water bags are connected to the water outlet through the connecting pipes. A plurality of collection bags for collecting condensate on the surface of the water bags are also fixedly connected to the inner wall of the shell;

[0009] A first temperature sensor for measuring real-time temperature data is also provided in the water bag. A first solenoid valve is also connected in the connecting pipe. The first solenoid valve is located between the water bag and the water outlet. The first temperature sensor and the first solenoid valve are electrically connected to a control panel, and the control panel is used to send a start instruction to the first solenoid valve based on the real-time temperature data.

[0010] The following beneficial effects are achieved by adopting the above scheme:

[0011] The shell and the soil surface are illuminated by the focusing component to increase the temperature inside the shell, so that the volatile pollutants on the soil surface are sublimated by the sunlight, so that the volatile pollutants in the soil are condensed by the water bag and separated from the soil. At the same time, the local light concentration brought by the focusing component causes the bimetallic plate to bend due to the deformation difference caused by the temperature, so that the volatile pollutants are sublimated by the sunlight and drip into the collection bag for collection.

[0012] Compared with the prior art, through the measurement of the first temperature sensor, it is easy to determine whether the bimetallic plate has the maximum bending and judge whether drainage is needed. At the same time, the water inside the water bag is continuously heated, so that after the water in the water bag is discharged, the polluted organic matter in the soil can be separated from the soil, thereby facilitating the subsequent recovery of the infiltration liquid and realizing the sampling and processing of the pollutants inside the soil, thereby facilitating the subsequent determination of the types of pollutants in the soil and improving work efficiency.

[0013] Furthermore, the focusing assembly includes a concave support frame, and a focusing mirror is arranged between adjacent support frames. Support shafts are fixedly connected to both sides of the focusing mirror, and the support shafts are rotatably matched with the support frame.

[0014] Beneficial effect: The condenser is rotated on the support frame through the support shaft to adjust the light focusing direction of the condenser to adjust the temperature rise change or light focusing in the shell.

[0015] Furthermore, a driving member is fixedly connected inside the support frame, the output shaft of the driving member is coaxially fixedly connected to the support shaft, and the driving member is electrically connected to the control panel; the control panel is used to enter and store rotation control instructions for different time periods, and send rotation control instructions for different time periods to the driving member based on the current time.

[0016] Beneficial effect: By using a driving member instead of manual adjustment, the rotation direction of the condenser can be controlled through rotation control instructions in different time periods, so as to gather sunlight in different time periods of the day to the center of the shell for heating.

[0017] Furthermore, the control panel is also used to sequentially number the real-time temperature data sent by the first temperature sensor, where the position numbers are A1...A2...An. When the real-time temperature data is greater than the rated temperature, the control panel obtains the position number An corresponding to the first temperature sensor corresponding to the real-time temperature data, and sends the corresponding azimuth adjustment instruction to the drive component based on the position number An.

[0018] Beneficial effect: The first temperature sensor is marked separately to determine the angle of sunlight exposure, and the driving member drives the focusing mirror to irradiate the center through position adjustment, so as to achieve uniform illumination of the surface soil and the inside of the shell.

[0019] Furthermore, one end of the recovery rod away from the shell is fixedly connected with a spike portion.

[0020] Beneficial effect: The spike portion makes it easy to insert the recovery rod into the ground, thereby facilitating the subsequent collection of seepage liquid in the underground soil.

[0021] Furthermore, a second recovery port is provided on the recovery rod, and a partition is provided between adjacent second recovery ports, and the partition is fixedly connected to the recovery rod.

[0022] Beneficial effect: A plurality of independent chambers are formed by the partitions, so that the seepage fluid at different depths can be stored separately, thereby reducing the difficulty of identifying the components of the seepage fluid at different depths after mixing.

[0023] Furthermore, a filter screen is provided in the second recovery port, and an air pipe is also connected in the recovery channel, and one end of the air pipe away from the recovery channel is located in the shell, and the air pipe is connected with a solenoid valve and a first one-way valve, the first one-way valve is located between adjacent partitions, and the solenoid valve is electrically connected to the control panel; a connecting pipe is also connected in the shell, and a second one-way valve is connected in the connecting pipe for allowing only the gas in the shell to flow to the outside of the shell;

[0024] The control panel is also used for sending a delayed start instruction to the second solenoid valve when the control panel sends a start instruction to the first solenoid valve based on the real-time temperature data.

[0025] Beneficial effect: After the gas inside the shell is heated by sunlight, the heated gas inside the shell is discharged to the outside of the shell through the second one-way valve, forming a pressure difference between the inside and outside of the shell, so that the seepage liquid in the soil is sucked into the recovery channel for preservation.

[0026] Furthermore, a heat-insulating layer is fixedly connected inside the collecting bag.

[0027] Beneficial effect: The insulating effect of the thermal insulation layer can separate and store the liquid inside the collection bag, thereby reducing the possibility of internal volatilization.

[0028] Furthermore, the collecting bag is located between adjacent connecting pipes, and a baffle is slidably fitted on the shell, and the baffle corresponds to the position of the collecting bag.

[0029] Beneficial effect: By sliding the baffle, the condensate in the collection bag can be easily taken out for subsequent testing.

[0030] Furthermore, an end of the water outlet close to the connecting pipe is higher than an end of the water outlet far from the connecting pipe.

[0031] Beneficial effect: An inclined injection surface is formed through the water outlet, which facilitates the infiltration of the infiltrate toward the center of the recovery rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a top axonometric view of a device for monitoring pollutants in soil according to an embodiment of the present invention.

[0033] Figure 2 This is a bottom isometric view of a device for monitoring pollutants in soil according to an embodiment of the present invention.

[0034] Figure 3 for Figure 1 A partial schematic diagram of the shell.

[0035] Figure 4 for Figure 1 A partial schematic diagram of the condenser.

[0036] Figure 5 It is a cross-sectional view of a device for monitoring pollutants in soil according to an embodiment of the present invention.

[0037] Figure 6 for Figure 5 AA section view. DETAILED DESCRIPTION

[0038] The following is further described in detail through specific implementation methods:

[0039] The figure marks in the drawings of the specification include: shell 1, light-transmitting mirror 11, connecting pipe 12, bottom plate 13, water outlet 14, bimetallic plate 2, water bag 21, first recovery port 22, collecting bag 23, recovery rod 3, recovery channel 31, second recovery port 32, focusing mirror 4, support shaft 41, support frame 42, first solenoid valve 5, first temperature sensor 6, control panel 7, second solenoid valve 8.

[0040] Example 1

[0041] The embodiment is basically as shown in the attached Figures 1 to 6 As shown: A device for monitoring pollutants in soil, including a shell 1, a plurality of focusing components for focusing light are arranged on the top of the shell 1, the focusing components include a concave support frame 42, the support frame 42 is welded to the top of the shell 1, and a focusing lens 4 is arranged between adjacent support frames 42, and support shafts 41 are clamped on both sides of the focusing lens 4, and the support shafts 41 are rotatably matched with the support frames 42; and a light-transmitting mirror 11 for sealing the shell 1 is also arranged on the top of the shell 1; a bottom plate 13 is fixedly connected to the bottom of the shell 1 by bolts, and a plurality of water outlets 14 are opened on the bottom plate 13, and an end of the water outlet 14 close to the connecting pipe 12 is higher than an end of the water outlet 14 away from the connecting pipe 12.

[0042] A driving member (not shown in the figure) is fixedly connected by bolts inside the support frame 42. The driving member is a motor. The output shaft of the driving member is coaxially welded with the support shaft 41, and the driving member is electrically connected to a control panel 7. The control panel 7 is used to enter and store rotation control instructions for different time periods, and send rotation control instructions for different time periods to the driving member based on the current time.

[0043] For example, changes in the sun's illumination during the day will cause changes in the angle of sunlight irradiating the shell 1, thereby affecting the bending of the bimetallic plate 2. The control panel 7 sends rotation control instructions for different time periods to the drive component based on the current time, so that the focusing mirror 4 continues to irradiate the shell 1 or the bimetallic strip.

[0044] A recovery rod 3 is welded at the center of the shell 1, and a spike portion is fixedly connected to one end of the recovery rod 3 away from the shell 1; a plurality of bimetal plates 2 arranged in a ring are provided on the outside of the recovery rod 3, and the bimetal plates 2 are welded to the inner wall of the shell 1, and water bags 21 are welded on one side of the bimetal plates 2 close to the bottom plate 13, and the water bags 21 are connected to the connecting pipes 12, and the connecting pipes 12 are located in the shell 1, and the water bags 21 are connected to the water outlet 14 through the connecting pipes 12; a plurality of collection bags 23 for collecting condensate on the surface of the water bags 21 are also welded to the inner wall of the shell 1.

[0045] A first temperature sensor 6 for measuring real-time temperature data is also provided in the water bag 21. A first solenoid valve 5 is also connected in the connecting pipe 12. The first solenoid valve 5 is located between the water bag 21 and the water outlet 14. The first temperature sensor 6 and the first solenoid valve 5 are electrically connected to a control panel 7. The control panel 7 is used to compare the real-time temperature data with the set rated temperature. If the real-time temperature data is greater than the rated temperature, a start command is sent to the solenoid valve. If the real-time temperature data is less than the rated temperature, a sleep command is sent to the solenoid valve.

[0046] For example, in the process of continuous irradiation of the bimetallic plate 2 by the focusing component, due to the thermal conductivity of the bimetallic plate 2, the temperature inside the water bag 21 continues to rise until the temperature inside the water bag 21 is flush with the temperature of the bimetallic plate 2. At this time, the bimetallic plate 2 is in the maximum bending state, which facilitates the discharge of water inside the water bag 21 due to the height difference; at the same time, after the heated water in the water bag 21 is discharged, the molecular activity of pollutants inside the soil is increased, which facilitates the separation of polluted organic matter in the soil from the soil, so as to facilitate the reliability and representativeness of the infiltration liquid collected subsequently, so as to realize the detection of soil pollution.

[0047] The control panel 7 is also used to sequentially number the real-time temperature data sent by the first temperature sensor 6, and the position numbers are A1...A2...An. When the real-time temperature data is greater than the rated temperature, the control panel 7 obtains the position number An corresponding to the first temperature sensor 6 corresponding to the real-time temperature data, and sends the corresponding azimuth adjustment instruction to the drive component based on the position number An.

[0048] For example, due to specific weather changes or interference from other factors such as trees, the angle of the external sunlight on the focusing component will change to a certain extent. The driving component is adjusted by the temperature change of the bimetallic plate 2 caused by the focusing component at the current time to reduce local irradiation or temperature rise, so that the bimetallic strips and soil in the shell 1 are evenly irradiated or heated, which makes it easier to evenly heat the water in the water bag 21 and deform all the bimetallic strips.

[0049] The specific implementation process is as follows: first, the recovery rod 3 is inserted into the ground through the spike part, and then the bottom and the shell 1 are placed on the ground; the light focusing of the focusing component is intelligently adjusted through the control panel 7 to heat up or irradiate the shell 1, and at the same time, the volatile pollutants and new pollutants on the soil surface are separated from the soil through the temperature change caused by sunlight irradiation, and the volatile pollutants such as VOC, SVOC, cyanide, sulfide, etc.; new pollutants such as agricultural compounds (pesticides, herbicides), microplastics, plasticizers, etc. are condensed on the surface of the water bag 21 through the sealed shell 1.

[0050] During the deformation of the bimetallic plate 2, an inclined surface is formed to allow the condensate to fall for collection; thereby sampling and processing of different pollutants inside the soil is achieved, making it easier to subsequently determine the types of pollutants in the soil.

[0051] Example 2

[0052] The difference from the above embodiment is that a second recovery port 32 is opened on the recovery rod 3 , and a partition is provided between adjacent second recovery ports 32 , and the partition is welded to the recovery rod 3 .

[0053] A recovery channel 31 is opened in the recovery rod 3, and the recovery channel 31 is connected with the second recovery port 32. The second recovery port 32 is provided with a filter (not shown in the figure). The recovery channel 31 is also connected with an air pipe. The end of the air pipe away from the recovery channel 31 is located in the shell 1, and the air pipe is connected with a solenoid valve and a first one-way valve (not shown in the figure). The first one-way valve is located between adjacent partitions, and the solenoid valve is electrically connected to the control panel 7; the shell 1 is also connected with a connecting pipe, and the connecting pipe is connected with a second one-way valve for allowing the gas in the shell 1 to flow to the outside of the shell 1; the control panel 7 is also used for when the control panel 7 sends a start instruction to the first solenoid valve 5 based on real-time temperature data, the control panel 7 sends a delayed start instruction to the second solenoid valve 8.

[0054] For example, during the collection process of the recovery rod 3, a number of independent chambers are formed by the partitions, so that the seepage liquid at different depths can be stored separately, so as to reduce the difficulty of identifying the components of the seepage liquid at different depths after mixing. At the same time, the gas inside the shell 1 is heated by sunlight, so that the heated gas inside the shell 1 is discharged to the outside of the shell 1 through the second one-way valve, forming a pressure difference between the inside and outside of the shell 1, so that the seepage liquid in the soil is sucked into the recovery channel 31 for storage, which is convenient for collecting the seepage liquid.

[0055] The collecting bag 23 is located between adjacent connecting pipes 12, and a baffle is slidably matched on the housing 1, and the baffle corresponds to the position of the collecting bag 23. A heat-insulating layer is bonded inside the collecting bag 23.

[0056] For example, if the condensate in the collection bag 23 is at a high temperature, the liquid inside the collection bag 23 is easily disturbed by the outside world and evaporates again, which is inconvenient for collection and processing; the insulating effect of the insulation layer can separate and store the liquid inside the collection bag 23, thereby reducing the possibility of internal volatilization.

[0057] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and / or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A device for monitoring pollutants in soil, characterized in that: It comprises a shell, a plurality of focusing components for focusing light are fixedly connected to the top of the shell, a bottom plate is fixedly connected to the bottom of the shell, and a plurality of water outlets are opened on the bottom plate; A recovery rod is fixedly connected at the center of the shell, and a plurality of bimetal plates arranged in a ring are arranged outside the recovery rod. Water bags are fixedly connected to the sides of the bimetal plates close to the bottom plate. The water bags are connected to connecting pipes, which are located inside the shell, and the water bags are connected to the water outlet through the connecting pipes. A plurality of collection bags for collecting condensate on the surface of the water bags are also fixedly connected to the inner wall of the shell; A first temperature sensor for measuring real-time temperature data is also provided in the water bag, and a first solenoid valve is also connected in the connecting pipe. The first solenoid valve is located between the water bag and the water outlet, and the first temperature sensor and the first solenoid valve are electrically connected to a control panel, and the control panel is used to send a start instruction to the first solenoid valve based on the real-time temperature data; The shell and the soil surface are illuminated by the focusing component to increase the temperature inside the shell, so that the volatile pollutants on the soil surface are sublimated by the sunlight, so that the volatile pollutants in the soil are condensed by the water bag and separated from the soil. At the same time, the local light concentration brought by the focusing component causes the bimetallic plate to bend due to the deformation difference caused by the temperature, so that the volatile pollutants are sublimated by the sunlight and drip into the collection bag for collection.

2. The device for monitoring pollutants in soil according to claim 1, characterized in that: The focusing assembly comprises a concave support frame, wherein a focusing mirror is arranged between adjacent support frames, and support shafts are fixedly connected to both sides of the focusing mirror, and the support shafts are rotatably matched with the support frame.

3. The device for monitoring pollutants in soil according to claim 2, characterized in that: A driving member is fixedly connected inside the support frame, and the output shaft of the driving member is coaxially fixedly connected to the support shaft, and the driving member is electrically connected to the control panel; the control panel is used to enter and store rotation control instructions for different time periods, and send rotation control instructions for different time periods to the driving member based on the current time.

4. The device for monitoring pollutants in soil according to claim 3, characterized in that: The control panel is also used to sequentially number the real-time temperature data sent by the first temperature sensor, where the position numbers are A1...A2...An. When the real-time temperature data is greater than the rated temperature, the control panel obtains the position number An corresponding to the first temperature sensor corresponding to the real-time temperature data, and sends the corresponding azimuth adjustment instruction to the drive component based on the position number An.

5. The device for monitoring pollutants in soil according to claim 1, characterized in that: One end of the recovery rod away from the shell is fixedly connected with a spike portion.

6. The device for monitoring pollutants in soil according to claim 1, characterized in that: The recovery rod is provided with a second recovery port, and a partition is provided between adjacent second recovery ports, and the partition is fixedly connected to the recovery rod.

7. The device for monitoring pollutants in soil according to claim 6, characterized in that: A recovery channel is provided in the recovery rod, the recovery channel is connected to the second recovery port, and the second recovery port is provided with a filter; the recovery channel is also connected to an air pipe, one end of the air pipe away from the recovery channel is located in the shell, and the air pipe is connected to an electromagnetic valve and a first one-way valve, the first one-way valve is located between adjacent partitions, and the electromagnetic valve is electrically connected to the control panel; the shell is also connected to a connecting pipe, and the connecting pipe is connected to a second one-way valve for allowing only the gas in the shell to flow to the outside of the shell; The control panel is also used for sending a delayed start instruction to the second solenoid valve when the control panel sends a start instruction to the first solenoid valve based on the real-time temperature data.

8. The device for monitoring pollutants in soil according to claim 1, characterized in that: A heat-insulating layer is fixedly connected inside the collecting bag.

9. The device for monitoring pollutants in soil according to claim 1, characterized in that: The collecting bag is located between adjacent connecting pipes, and a baffle is slidably matched on the shell body, and the baffle corresponds to the position of the collecting bag.

10. The device for monitoring pollutants in soil according to claim 1, characterized in that: The end of the water outlet close to the connecting pipe is higher than the end of the water outlet far from the connecting pipe.

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